WO2010061579A1 - 架橋型ヘキサアリールビスイミダゾール新規化合物およびその誘導体、該化合物の製造方法、ならびに該製造方法に用いられる前駆体化合物 - Google Patents
架橋型ヘキサアリールビスイミダゾール新規化合物およびその誘導体、該化合物の製造方法、ならびに該製造方法に用いられる前駆体化合物 Download PDFInfo
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- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
- C07D233/58—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring nitrogen atoms
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- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
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- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
Definitions
- the present invention relates to a novel crosslinked hexaarylbisimidazole compound, a method for producing the compound, and a precursor compound used in the production method. More specifically, there are a plurality of cross-linked hexaarylbisimidazole compounds and multiple structural units containing a bisimidazole skeleton that have both high-speed color development and decoloring characteristics and high color density, as well as precise control of color tone and density.
- the present invention relates to a polymerized multimeric compound, a method for producing the compound having a high degree of freedom in molecular design and synthesis, and a precursor compound serving as a key compound used in the production method.
- HABI hexaarylbisimidazole
- Non-patent document 1 diarylethene
- spirooxazine pattern 2
- Patent Document 3 Since compounds exhibit reversible coloring when irradiated with light, research aimed at application to light-modulating materials (Patent Document 3) and optical recording materials (Patent Documents 4 and 5) has been actively conducted. .
- Hexaarylbisimidazole generates a triarylimidazolyl radical (hereinafter also referred to as “TAIR”), which is a highly reactive radical species, by irradiation with ultraviolet light, and thus has been widely used as a photopolymerization initiator.
- TAIR triarylimidazolyl radical
- a photochromic compound is a P-type photochromic compound that is isomerized by light irradiation and then reversibly returns to its original structure by irradiation with light of different wavelengths. After isomerization by light irradiation, thermal reaction causes several hours to several minutes A T-type photochromic compound that reversibly returns to its original structure is known.
- these conventional photochromic compounds have a problem that the decoloring reaction takes at least several minutes to several seconds in order to move between isomers having different structures.
- the two triarylimidazolyl radicals generated by the cleavage of the carbon-nitrogen bond diffuse into the medium, and it takes time to recombine the radicals, so the decolorization reaction rate is slow, and repeated durability And the like, such as poor stability over time.
- Non-patent document 2 the synthesis of a molecule (1,8-NDPI-TPI-naphthalene) in which two molecules of triarylimidazolyl radical are introduced at the 1- and 8-positions of naphthalene has been reported ( Non-patent document 2).
- the colored body which is a stabilized radical species, deteriorates due to a hydrogen abstraction reaction from the surrounding medium. In terms of application to various purposes, It was not a photochromic compound having sufficient characteristics.
- the present invention eliminates the above-mentioned problems, realizes excellent thermal stability and stability over time, realizes a fast color-decoloring reaction and high color density, and also realizes precise control of color tone and density of color development. Then, it aims at providing the photochromic compound which can be applied to the use according to various objectives. Furthermore, the present invention provides a method for producing a photochromic compound and a precursor compound used for the method, which can synthesize compounds having various structures by increasing the degree of freedom in molecular design and synthesis. Objective.
- TAIR triarylimidazolyl radicals
- the present inventors further produce a photochromic compound capable of increasing the degree of freedom in designing and synthesizing a molecular structure by synthesizing a precursor compound having a specific structure having an imidazole skeleton and an aldehyde group as a key compound. We found that the method can be realized. As a result of further research, the present invention has been completed.
- the present invention provides the following general formula (1)
- the two aryl groups of A and B are bridged to each other by a bridging group X (excluding 1,8-naphthalenylene), l is an integer from 1 to 5,
- R X is the same or different independently of each other, and is a halogen atom, nitro group, cyano group, trifluoromethyl group, hydroxyl group, thiol group, amino group, diphenylamino group and carbazole group, straight chain having 1 to 20 carbon atoms Or branched alkyl groups, alkylamino groups and alkoxy groups, and —Y 1 —SiZ 1 Z 2 Z 3 groups, —Y 1 —SiY 2 Z 1 Z 2 groups and —Y 1 —SiY 2 Y 3 Z 1 group (where Y 1 to Y 3
- the four aryl groups A to D have or are not independently substituted with substituents R A to R D ; m and n are each independently an integer of 0 to 4, o and p are each independently an integer of 0 to 5,
- the substituents R A and R B are the same or different independently of each other, and are a halogen atom, nitro group, cyano group, trifluoromethyl group, hydroxyl group, thiol group, amino group, diphenylamino group, carbazole group, carbon number 1 -20 linear or branched alkyl, alkylamino and alkoxy groups, and -Y 1 -SiZ 1 Z 2 Z 3 group, -Y 1 -SiY 2 Z 1 Z 2 group and -Y 1 —SiY 2 Y 3 Z 1 group (wherein Y 1 to Y 3 are each independently the same or different and each represents a linear or branched alkyl group or alkylene group having 1 to 20 carbon atoms) , Z 1
- R C and R D are the same or different independently from each other, and have the same meaning as the substituents R A and R B.
- R i1 represents an alkylene group or an alkoxylene group having 1 to 20 carbon atoms
- R i2 represents hydrogen or an alkyl group having 1 to 3 carbon atoms
- R i3 represents an alkylene group or alkoxylene group having 1 to 20 carbon atoms
- R i4 represents a cyclic olefin having a total of 5 to 10 carbon atoms and silicon atoms
- x is 0 or
- R iii represents an alkylene group or alkoxylene group having 1 to 20 carbon atoms
- R i4 represents a cyclic olefin having a total of 5 to 10 carbon atoms and silicon atoms
- x is 0
- R i5 represents an alkylene group or an alkoxylene group having 1 to 20 carbon atoms
- R i6 represents an ethylene group or an acetylene group
- substituents R A to R D do not form or form an aliphatic ring or aromatic ring together with the carbon atom to which they are bonded and other substituents
- the substituent R C is further formed on the ring.
- a compound represented by having or not having a substituent having the same meaning as RD a compound represented by having or not having a substituent having the same meaning as RD .
- the present invention also relates to the above compound, wherein the bridging group is a bridging group that is not conjugated with a triarylimidazolyl radical (TAIR).
- TAIR triarylimidazolyl radical
- the invention further relates to the above compounds wherein m and n are 0 and the bridging group X is unsubstituted or the substituents R A , R B and R X are methyl groups.
- the present invention provides the following general formula (1a) It relates to the above compound represented by: Further, the present invention provides the following general formula (2)
- a bridging group X excluding 1,8-naphthalenylene
- l is an integer from 1 to 5
- R X is the same or different independently of each other, and is a halogen atom, nitro group, cyano group, trifluoromethyl group, hydroxyl group, thiol group, amino group, diphenylamino group and carbazole group, and a straight chain having 1 to 20 carbon atoms.
- n and n are each independently an integer of 0 to 4, o to r are each independently an integer of 0 to 5;
- the substituents R A and R B are the same or different independently of each other, and are a halogen atom, a nitro group, a cyano group, a trifluoromethyl group, a hydroxyl group, a thiol group, an amino group, a diphenylamino group and a carbazole group, and a carbon number 1-20 linear or branched alkyl, alkylamino and alkoxy groups, and —Y 1 —SiZ 1 Z 2 Z 3 group, —Y 1 —SiY 2 Z 1 Z 2 group and —Y 1- SiY 2 Y 3 Z 1 group (wherein Y 1 to Y 3 are each independently the same or different and each represents a linear or branched alkyl group or alkylene group having 1 to 20 carbon atoms) , Z 1 ⁇ Z 3 are the same or independently of one another
- R i3 represents an alkylene group or alkoxylene group having 1 to 20 carbon atoms
- R i4 represents a cyclic olefin having a total of 5 to 10 carbon atoms and silicon atoms
- x is 0 or
- R iii represents an alkylene group or alkoxylene group having 1 to 20 carbon atoms
- R i4 represents a cyclic olefin having a total of 5 to 10 carbon atoms and silicon atoms
- x is 0
- R i5 represents an alkylene group or an alkoxylene group having 1 to 20 carbon atoms
- R i6 represents an ethylene group or an acetylene group
- one kind selected from the group consisting of substituents Or two or more substituents The substituents R A to R F do not form or form an aliphatic ring or an aromatic ring together with the bonded carbon atom and other substituents, and the substituents R C to R are further formed on the ring.
- the present invention further relates to the aforementioned compounds, wherein at least one of the substituents R A to R F is not hydrogen.
- the present invention also relates to the above compound, wherein the triarylimidazole moiety containing the aryl group A and the triarylimidazole moiety containing the aryl group B have different structures and are asymmetric.
- the present invention relates to the compound, wherein the bridging group is a bridging group that is not conjugated with a triarylimidazolyl radical (TAIR).
- the bridging group is a —CH 2 CH 2 — group, —CH 2 CH 2 CH 2 — group, —CH 2 CH 2 CH 2 CH 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) ) 2 — group, —SiH 2 OSiH 2 — group, —Si (CH 3 ) 2 OSi (CH 3 ) 2 — group, —Si (CH 3 CH 2 ) 2 OSi (CH 2 CH 3 ) 2 — group, — One or more bridging groups selected from the group consisting of a CH 2 SCH 2 — group, —CH 2 OCH 2 — group, —OCH 2 CH 2 O— group and —CH 2 OCH 2 CH 2
- the present invention also relates to the above compound wherein m and n are 0 and the bridging group X is unsubstituted, or the substituents R A and R B and the substituent R X are methyl groups.
- the general formula (2) is represented by the following general formula (2a): In which m and n are each independently 0-3, o to r are each independently an integer of 0 to 5;
- the substituents R A and R B and R C to R F are independently the same or different and have the same meaning as the substituents R A and R B and R C to R F in the general formula (2), respectively. It is related with the said compound represented by having.
- the present invention provides the following general formula (3)
- the two aryl groups of A and B are bridged to each other by a bridging group X (excluding 1,8-naphthalenylene), l is an integer from 1 to 5,
- a hydrogen atom is present in the bridging group X, the hydrogen atom may be independently substituted with one or more substituents R X , ⁇ is an integer from 1 to 9,
- the linking group L is a monocyclic or polycyclic aromatic compound composed of 1 to 12 aromatic rings having 5 to 8 carbon atoms per ring structure,
- the five aryl groups A to E in the structural unit containing the bisimidazole skeleton have or are not independently substituted with the substituents R A and R B and R C to R E , All of the substituents R A and R B , R C -R E and R X are the same or different independently of each other, and each of the substituents R A and R B , R C -R E in the above general formula (2)
- the general formula (3) is represented by the following general formula (3b): Wherein 11 aryl groups have or do not have substituents R A and R B and R C -R F ; All of the substituents R A and R B and R C to R F possessed by the aryl group are the same or different independently of each other, and each of the substituents R A and R B and R C to R in the above general formula (2) Has the same meaning as R F , m, n and r are each independently an integer of 0 to 4, o to q are each independently an integer of 0 to 5; It is related with the said compound represented by these.
- the general formula (3) is represented by the following general formula (3c):
- 16 aryl groups do not have or have substituents R A and R B and R C to R F , and all of the substituents R A and R B and R C to R F which the aryl group has Are independently the same or different and have the same meaning as the substituents R A and R B and R C to R F in the general formula (2), respectively, m and n are each independently an integer of 0 to 4, o to q are each independently an integer of 0 to 5; r is an integer from 0 to 3, It is related with the said compound represented by these.
- the present invention relates to the above compound, wherein the bridging group is a bridging group that is not conjugated with a triarylimidazolyl radical (TAIR).
- the bridging group is a —CH 2 CH 2 — group, —CH 2 CH 2 CH 2 — group, —CH 2 CH 2 CH 2 CH 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) ) 2 — group, —SiH 2 OSiH 2 — group, —Si (CH 3 ) 2 OSi (CH 3 ) 2 — group, —Si (CH 3 CH 2 ) 2 OSi (CH 2 CH 3 ) 2 — group, — One or more bridging groups selected from the group consist
- the present invention provides the following partial structural formula (vi)
- the structure represented by the following partial structural formula (vii) are independently the same or different and each have the same meaning as the substituents R A and R B in the above general formula (3) A group or a hydrogen atom, It is related with the said compound represented by these.
- A is an arbitrary linking group consisting of one or more atoms selected from the group consisting of carbon, nitrogen and oxygen atoms
- B is a derivative of the above compound
- AB represents a bond between the linking group and one or two substituents selected from the substituents R C to R F and R L of the compound
- ⁇ is an integer greater than or equal to 0, ⁇ , ⁇ , ⁇ and ⁇ each relate to a polymer compound having a repeating structural unit represented by the following, independently of each other, being an integer of 1 or more.
- the present invention also relates to a photochromic material containing any one of the compounds and / or polymer compounds described above. Furthermore, the present invention relates to a solvent containing any one of the compounds and / or polymer compounds described above. The present invention also relates to a resin containing any one of the compounds and / or polymer compounds described above. Furthermore, the present invention is a material composition having photochromic properties, containing one or more selected from the group consisting of the compound, polymer compound, photochromic material, solvent and resin described in any one of the above, The present invention relates to the material composition selected from the group consisting of a light control material, a hologram material, an ink material, an optical information display device, an optical switch element, and a photoresist material.
- this invention is a manufacturing method of the said compound, Comprising: The said precursor compound and following General formula (4) In which the two aryl groups, independently of one another, have no or no substituents R E and R F , The substituents R E and R F are the same or different independently of each other, and are halogen atoms, nitro groups, cyano groups, trifluoromethyl groups, hydroxyl groups, thiol groups, amino groups, diphenylamino groups and carbazole groups, carbon number 1-20 linear or branched alkyl groups, alkylamino groups, alkoxy groups, —Y 1 —SiZ 1 Z 2 Z 3 groups, —Y 1 —SiY 2 Z 1 Z 2 groups, —Y 1 — SiY 2 Y 3 Z 1 group (wherein Y 1 to Y 3 are each independently the same or different and each represents a linear or branched alkyl group or alkylene group having 1 to 20 carbon atoms; It is 1 ⁇ Z 3, identical or
- R i5 represents an alkylene group or an alkoxylene group having 1 to 20 carbon atoms
- R i6 represents an ethylene group or an acetylene group
- substituents Or two or more substituents, q and r are each independently an integer of 0 to 5
- the substituent that the aryl group has does not form or forms an aliphatic ring or an aromatic ring together with the bonded carbon atom and other substituents, and further the substituent that the aryl group has on the ring Having or not having a substituent having the same meaning as It relates to the above production method, wherein the compound represented by the formula is reacted.
- this invention is a manufacturing method of the said compound, Comprising: The said precursor compound and following General formula (5) Where ⁇ is an integer from 1 to 9,
- the linking group M is a monocyclic or polycyclic aromatic compound composed of 1 to 12 aromatic rings having 5 to 8 carbon atoms per ring structure,
- the aryl group in the structural unit containing the 1,2-diketone skeleton may or may not have the substituent R E ; All of the substituents of the aryl group are the same or different independently of each other, and have the same meaning as R E in the general formula (4), q is an integer of 1 to 5,
- the substituent R E does not form or forms an aliphatic ring or an aromatic ring together with the carbon atom to which it is bonded and other substituents, and on the ring and the aromatic ring of the linking group M, further having no or have a substituent R M, It relates to the above production method, wherein the compound represented by the formula is reacted.
- hv ⁇ indicates that the compound of the present invention has an energy level due to absorption of energy such as ultraviolet light.
- ⁇ ⁇ means that the radical species absorbs thermal energy and is reversible to the original bisimidazole monomer or multimer having a low energy level. It means to move to.
- the term “compound represented by the formula (2)” is a compound represented by the left side of the formula (2), and is converted to a radical species on the right side by absorption of energy (h ⁇ ). A compound that transitions and reversibly transfers to the compound on the left side by absorption of thermal energy.
- the compound containing HABI of the present invention has two triarylimidazolyl radicals (TAIR) produced by irradiation with ultraviolet light, visible light, or the like, in which the aryl group is bound by a bridging group, in particular, a bridging group that is not conjugated with TAIR. It is a feature that the two TAIRs are prevented from diffusing apart from each other, and further, the radical is stabilized more than necessary by conjugating the TAIR and the bridging group to form a resonance structure. Is suppressed.
- TAIR triarylimidazolyl radicals
- the cross-linked hexaarylbisimidazole compound of the present invention and the multimeric compound of the compound are superior in thermal stability and temporal stability compared to conventional photochromic compounds, and have both high-speed color-decoloring characteristics and high color density. .
- the molecular structure can be optimally designed according to the application and purpose, and preferably, in the general formula (2), any of R A to R F has a substituent that is not a hydrogen atom, and more preferably
- the compound of the present invention can be expected to be applied to a wide range of fields such as a light control material that reacts with sunlight, an optical switch element, an optical information display device, a photoresist material, a hologram material, and an ink material.
- the above-described method for producing a compound using the precursor compound of the present invention can increase the degree of freedom in designing and synthesizing the molecular structure of the photochromic compound. Therefore, application to the production of photochromic compounds having various structures that can be applied to a wide range of uses can be expected.
- the measurement result of the visible and near-infrared absorption spectrum immediately after nanosecond ultraviolet laser irradiation in the nanosecond laser flash photolysis measurement of the PMMA thin film containing pseudogem-bisDPI [2.2] paracyclophane of Example 2 is shown. It is a graph.
- the measurement result of attenuation of the absorption band (400 nm) before irradiation with the nanosecond ultraviolet laser and for each 1,000 times irradiation of the nanosecond ultraviolet laser is shown. It is the shown graph.
- bisTPI-TMDS 1,3-bis (triphenylimidazole) -1,1,3,3-tetramethyldisiloxane
- FIG. 2 is a graph showing an ultraviolet-visible absorption spectrum of the compound of Example 1.
- FIG. It is the figure which showed the molecular structure of the compound of Example 7 clarified by the single crystal X-ray structural analysis.
- 6 is a graph showing an ultraviolet-visible absorption spectrum of the compound of Example 7. It is the graph which showed the measurement result of the visible and near-infrared absorption spectrum immediately after nanosecond ultraviolet laser irradiation in the nanosecond laser flash photolysis measurement of the compound of Example 7. It is the graph which showed the measurement result of attenuation
- FIG. 6 is a graph showing an ultraviolet-visible absorption spectrum of the compound of Example 8. It is the graph which showed the measurement result of the visible and near-infrared absorption spectrum immediately after nanosecond ultraviolet laser irradiation in the nanosecond laser flash photolysis measurement of the compound of Example 8. It is the graph which showed the measurement result of attenuation
- 4 is a graph showing an ultraviolet-visible absorption spectrum of the compound of Example 9.
- One embodiment of the crosslinked hexaarylbisimidazole compound of the present invention is represented by the general formula (2), specifically, for example, (2a).
- the two aryl groups A and B are cross-linked with each other by a bridging group X (excluding 1,8-naphthalenylene).
- a bridging group X excluding 1,8-naphthalenylene
- it is preferably 1 to 3, more preferably 2 or 3.
- the position at which the bridging group is bonded is any of the ortho position, meta position and para position of the two phenyl groups of A and B. There may be.
- one or both ends of one cross-linking group may be bonded to two or more carbon atoms and cross-linked by a cross-linking group having a branched structure.
- At least one of the substituents R A to R F is not hydrogen.
- desired photochromic characteristics such as color tone and density of color development and response speed of decolorization can be controlled. More preferably, the photochromic characteristics can be precisely controlled by using an asymmetric structure. Similarly, precise control is possible by using a multimeric structure.
- the crosslinking group of the compound of the present invention may have any structure known to those skilled in the art as long as the aryl group A and the aryl group B can be linked.
- Preferred is a bridging group other than an aromatic skeleton having a high resonance stabilization energy, and more preferred is a bridging group that is not conjugated with a triarylimidazolyl radical (TAIR).
- TAIR triarylimidazolyl radical
- the cross-linking group that is not conjugated to TAIR means a cross-linking group that does not have a conjugated double bond at the cross-linking group site, and cannot form a resonance structure by conjugating two TAIRs and the cross-linking group.
- the bridging group of the compound of the present invention is preferably a ⁇ -bonded —CH 2 CH 2 — group, —CH 2 CH 2 CH 2 — group, —CH 2 CH 2 CH 2 CH 2 — group. , —Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) ) 2 Si (CH 3) 2 Si (CH 3) 2 - group, -SiH 2 OSiH 2 - group, -Si (CH 3) 2 OSi (CH 3) 2 - group, -Si (CH 3 CH 2) 2 OSi (CH 2 CH 3 ) 2 — group, —CH 2 SCH 2 — group, —CH 2 OCH 2 — group, —OCH 2 CH 2 O— group, —CH 2 OCH 2 CH 2 OCH 2 — group and —CH 2
- the hydrogen atom When a hydrogen atom is present in the bridging group X, the hydrogen atom may be substituted with a substituent R X.
- the substituents R X may be the same or different independently of each other, and may be a halogen atom, a nitro group, a cyano group, a trifluoromethyl group, a hydroxyl group, a thiol group, an amino group, a diphenylamino group, and a carbazole.
- a linear or branched alkyl group having 1 to 20 carbon atoms, a linear or branched alkylamino group having 1 to 20 carbon atoms, and a linear or branched group having 1 to 20 carbon atoms As well as —Y 1 —SiZ 1 Z 2 Z 3 group, —Y 1 —SiY 2 Z 1 Z 2 group and —Y 1 —SiY 2 Y 3 Z 1 group (where Y 1 to Y 3 Each independently may be the same or different and Y 1 to Y 3 each represents a linear or branched alkyl group or alkylene group having 1 to 20 carbon atoms, and Z 1 to Z 3 are independent of each other Which may be the same or different and each represents a hydrogen atom, a halogen atom or an alkoxy group having 1 to 8 carbon atoms). You may substitute using these substituents 1 type (s) or 2 or more types.
- the distance and angle between the two aryl groups of A and B of the compound of the present invention, the distance and angle of the two imidazole rings, the flexibility of the molecule, etc. are adjusted by the number, type and length of these bridging groups.
- photochromic properties such as a color developing / decoloring reaction rate and color density.
- the carbon atoms to which the bridging groups X of the two aryl groups A and B are not bonded may have substituents R A and R B independently of each other.
- the subscripts m and n are each independently an integer of 0 to 4, and the other four aryl groups C to F may independently have a substituent R C to R F ,
- the subscripts o to r are integers of 0 to 5 independently of each other.
- the substituents R A and R B may be the same as or different from each other, and may be a halogen atom, nitro group, cyano group, trifluoromethyl group, hydroxyl group, thiol group, amino group, diphenyl.
- Amino group and carbazole group linear or branched alkyl group having 1 to 20 carbon atoms, linear or branched alkylamino group having 1 to 20 carbon atoms and linear chain having 1 to 20 carbon atoms Or a branched alkoxyl group, and —Y 1 —SiZ 1 Z 2 Z 3 group, —Y 1 —SiY 2 Z 1 Z 2 group, and —Y 1 —SiY 2 Y 3 Z 1 group
- Y 1 -Y 3 may be the same or different independently from each other
- Y 1 -Y 3 represents a linear or branched alkyl group or alkylene group having 1 to 20 carbon atoms
- Z 1 ⁇ Z 3 is, each other Standing to, it may be the same or different and hydrogen atom.
- a halogen atom or an alkoxy group having 1 to 8 carbon atoms is a substituent selected from such. You may substitute using these substituents 1 type (s) or 2 or more types.
- the substituents R C to R F may be the same or different independently from each other, and may be a hydrogen atom, a halogen atom, a nitro group, a cyano group, a trifluoromethyl group, a hydroxyl group, a thiol group.
- Y 1 to Y 3 and Z 1 to Z 3 may be the same or different independently from each other, and Y 1 to Y 3 may be linear or branched having 1 to 20 carbon atoms.
- Branched alkyl group or alkylene group Represents, Z 1 ⁇ Z 3 represents a hydrogen atom, a halogen atom or an alkoxy group having 1-8 carbon atoms.
- R i1 represents an alkylene group having 1 to 20 carbon atoms or an alkoxylene group
- R i2 represents hydrogen or an alkyl group having 1 to 3 carbon atoms
- R i3 represents an alkylene group or alkoxylene group having 1 to 20 carbon atoms
- R i4 represents a cyclic olefin having a total of 5 to 10 carbon atoms and silicon number
- x is 1 or 2 or more substituents selected from the group consisting of substituents represented by 0 or 1)
- R i5 represents an alkylene group or an alkoxylene group having 1 to 20 carbon atoms
- R i6 represents an ethylene group or an acetylene group.
- the total number of carbons and silicons is 5 to 10. Therefore, for example, the case of 3 carbon atoms, 3 silicon atoms, 6 carbon atoms, 0 silicon atoms, and the like are also included.
- the compound of the present invention preferably has a bridged hexaarylbisimidazole in which at least one of the substituents R A to R F is not a hydrogen atom in each of the general formulas above, that is, at least one of m to r is not 0. It is a substituted compound.
- the molecular structure is optimally designed according to the use of the compound of the present invention, and the color tone, concentration, etc. It becomes possible to control the photochromic characteristics of the film more precisely. Therefore, the compound represented by the above general formula (1), which is a compound used for the synthesis of a crosslinked hexaarylbisimidazole having an asymmetric structure in particular, is also included in the present invention.
- the substituents R A , R E and R F of the triarylimidazole moiety containing the aryl group A and the triarylimidazole containing the aryl group of B which change the resonance structure, energy level, absorption wavelength, etc. of TAIR Substituent substituents R B , R C, and R D , the types of substituents (electron-donating and electron-withdrawing substituents), the number of substituents (1 to 5), and bonding of substituent It is exemplified that the position (ortho-position, meta-position and para-position of the aryl group) is different from each other, and an asymmetric structure is exemplified.
- the substituents R A to R F introduced for the purpose of precise control of photochromic properties in this case are preferably an electron donating group such as a dimethylamino group or a methoxy group, or a nitro group from the viewpoint of color tone / response speed control.
- a substituent selected from an electron-withdrawing group such as a cyano group, a linear or branched alkoxyl group having 1 to 20 carbon atoms, and more preferably a substituent selected from a methoxy group and a nitro group Is mentioned. You may substitute using these substituents 1 type (s) or 2 or more types.
- the substituent R X possessed by the bridging group is preferably selected from linear or branched alkyl groups having 1 to 20 carbon atoms, and more preferably a methyl group. You may substitute using these substituents 1 type (s) or 2 or more types. It is also preferred that it is unsubstituted.
- the substituents R A to R F include an aliphatic ring integrally formed with the carbon atom to which the substituent is bonded, the other substituent and the carbon atom to which the other substituent is bonded, An aromatic ring or a heterocyclic ring may be formed, and another substituent may be present on the ring, and the substituent preferably has the same meaning as the substituents R A to R F.
- the two triarylimidazole moieties of the present invention may be asymmetric to each other.
- Specific compounds represented by the general formulas (2) and (2a) include, for example, pseudogem-bisDPI [2.2] paracyclophane, 1,3-bis (triphenylimidazole) -1,1, Examples include 3,3-tetramethyldisiloxane (bisTPI-TMDS) and derivatives of these compounds.
- Another aspect of the present invention is a multimeric compound of a crosslinked hexaarylbisimidazole compound represented by the general formula (3), for example, (3b) or (3c).
- the two aryl groups A and B are bridged with each other by a bridging group X (excluding 1,8-naphthalenylene).
- the hydrogen atoms of may independently be substituted by one or more arbitrary substituents R X.
- the number 1 of the crosslinking groups X is preferably 1 to 3, more preferably 2 or 3, in consideration of the number of steps of organic synthesis, photochromic characteristics according to the application, thermal stability, and the like.
- the position at which the bridging group is bonded is any of the ortho position, meta position and para position of the two phenyl groups of A and B. There may be.
- one or both ends of one cross-linking group may be bonded to two or more carbon atoms and cross-linked by a cross-linking group having a branched structure.
- the cross-linking group of the compound of this embodiment may have any structure known to those skilled in the art as long as the aryl group A and the aryl group B can be linked.
- Preferred is a bridging group other than an aromatic skeleton having a high resonance stabilization energy, and more preferred is a bridging group that is not conjugated with a triarylimidazolyl radical (TAIR).
- TAIR triarylimidazolyl radical
- the cross-linking group that is not conjugated to TAIR means a cross-linking group that does not have a conjugated double bond at the cross-linking group site, and cannot form a resonance structure by conjugating two TAIRs and the cross-linking group.
- the bridging group of the compound of this embodiment is preferably a ⁇ -bonded —CH 2 CH 2 — group, —CH 2 CH 2 CH 2 — group, —CH 2 CH 2 CH 2 CH 2 — group. , —Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) 2 Si (CH 3 ) 2 — group, —Si (CH 3 ) 2 Si (CH 3 ) ) 2 Si (CH 3) 2 Si (CH 3) 2 - group, -SiH 2 OSiH 2 - group, -Si (CH 3) 2 OSi (CH 3) 2 - group, -Si (CH 3 CH 2) 2 OSi (CH 2 CH 3 ) 2 — group, —CH 2 SCH 2 — group, —CH 2 OCH 2 — group, —OCH 2 CH 2 O— group, —CH 2 OCH 2 CH 2 OCH 2 — group and —CHCH 2
- crosslinking groups 1 type (s) or 2 or more types.
- the distance and angle between the two aryl groups of A and B of the compound of the present invention, the distance and angle of the two imidazole rings, the flexibility of the molecule, etc. are adjusted by the number, type and length of these bridging groups.
- photochromic properties such as a color developing / decoloring reaction rate and color density.
- the number of bonds ⁇ of the structural unit containing one bisimidazole skeleton is an integer of 1 to 9, and preferably 1 to 9 from the viewpoint of the route design of organic synthesis and the steric hindrance of the compound. It is an integer of 6, more preferably an integer of 1 to 4. Further, from the viewpoint of color density per molar concentration, it is preferably an integer of 2 to 8, more preferably an integer of 2 to 6, and further preferably an integer of 2 to 4.
- the linking group L is a monocyclic or polycyclic aromatic compound having 1 to 12 aromatic rings having 5 to 8 carbon atoms per ring structure, such as route design of organic synthesis and steric hindrance of the compound.
- the number of carbon atoms per ring structure is preferably 6, and the number of aromatic rings is preferably 1 to 8, more preferably 1 to 4.
- the aromatic ring may be a heterocyclic ring in which one or more carbon atoms are replaced with an oxygen atom, a nitrogen atom, a sulfur atom, etc., provided that the ring member has at least one carbon atom.
- the aromatic ring may be an aliphatic ring having 5 to 8 carbon atoms, and the atom not bonded to the structural unit containing one bisimidazole skeleton is one or more optional substituents R L May be substituted.
- the optional substituent R L preferably has the same meaning as the substituents R C to R F above.
- the two aryl groups A and B in the structural unit containing a bisimidazole skeleton are bonded to each other.
- Carbon atoms that are not independently of each other may have substituents R A and R B independently of each other, the subscripts m and n are independently of each other an integer of 0 to 4, and other units in the structural unit
- the three aryl groups C to E may have substituents R C to R E independently of each other, and the subscripts o to q are integers of 0 to 5 independently of each other.
- the carbon atom on the aromatic ring to which the structural unit of the linking group L which is a monocyclic or polycyclic aromatic compound is not bonded corresponds to one or more carbon atoms corresponding to the molecular structure of the compound of the present invention.
- the carbon atom, silicon atom, and the like in the bridging group X may have one or more substituents R X corresponding to the molecular structure of the compound of the present invention.
- All of the aryl groups A and B and the substituents R A , R B and R X of the structural unit containing the bisimidazole skeleton and the bridging group X are within the range defined above ( However, in the partial structural formula (vii) including a hydrogen atom, they may be independently selected from the same or different substituents, and more preferably a methyl group (however, in the partial structural formula (vii) Hydrogen atom or methyl group). You may substitute using these substituents 1 type (s) or 2 or more types.
- the substituent includes an aliphatic ring, an aromatic ring, or a heterocyclic ring which is integrated with the carbon atom to which the substituent is bonded, the other substituent and the carbon atom to which the other substituent is bonded. And may have an optional substituent on the ring.
- the substituent preferably has the same meaning as R C to R F in general formula (2). Furthermore, even if the structure of the triarylimidazole moiety containing the aryl group A and the triarylimidazole moiety containing the aryl group B contained in the compound of the present embodiment is the same, or by bonding different substituents, etc. It is good also as a different structure.
- the photochromic properties such as color tone and density according to the use of the compound of the present invention.
- the distance and angle between the aryl groups A and B, the distance and angle of the two imidazole rings the flexibility of the molecule, the absorption wavelength of the molecule, the distance between each HAIR structure, the structure of the entire multimeric molecule, etc.
- the photochromic properties such as the color developing / decoloring reaction rate and the color density can be appropriately adjusted according to the use of the compound of this embodiment.
- the compound of the present invention may further polymerize a plurality of multimeric compounds represented by the above general formula.
- a pseudomer-bisDPI [2.2] paracyclophane dimer and trimer are further converted into 2 Examples thereof include tetramer to 9-mer polymer compounds obtained by polymerizing 1 to 3 polymers.
- the monomer or multimer which is the compound of the present invention includes two or one polymerizable substituents selected from the substituents R C to R F , the polymer main chain of the polymer compound, and / or
- the compound of the present invention can be introduced into the polymer compound as a functional site by condensation polymerization with two or one polymerizable functional group contained in the side chain, and the substituents R C to R F It is also possible to obtain a chain or network polymer compound by radical polymerization of the compounds of the present invention having two or more polymerizable substituents selected from
- the polymerizable substituents R C to R F in this case are preferably a hydroxyl group, amino group, carboxyl group, isocyanate group, halogen group, azide group, vinyl group, ethynyl group, norbornene group, and the following partial structure:
- Formula (viii) Substituents selected from acrylic acid or methacrylic acid esters such as butyl methacrylate, butyl acrylate, and propoxy methacrylate, and the like, more preferably selected from hydroxyl, butyl methacrylate, and the like
- the substituent which can be mentioned is mentioned. You may substitute using these substituents 1 type (s) or 2 or more types.
- the polymer compound of the present invention has the following partial structural formula (iv): And / or the following partial structural formula (v): It is a high molecular compound which has a repeating structural unit represented by these.
- A is an arbitrary linking group consisting of one or more atoms selected from the group consisting of carbon, nitrogen, oxygen atoms and the like, and is a linking group capable of polymerizing with the substituents R C to R F. Any linking group known to those skilled in the art as the group may be used.
- methacrylic esters such as styrene and methyl methacrylate
- acrylic esters such as methyl acrylate.
- the repeating unit may be repeated by partial structural formula (iv) or (v) alone, or may be repeated in combination, for example, as in partial structural formula (ix).
- Polymerizable substituents such as two or one hydroxyl group selected from substituents R C to R F of the bridged hexaarylimidazole derivative, and two contained in the polymer main chain or side chain of the polymer compound
- the compound of the present invention can be introduced into the polymer compound as a functional site by condensation polymerization with a polymerizable linking group such as one carboxyl group.
- the photochromic material containing the compound represented by the general formula (2), preferably (2a), and (3), preferably (3b) and (3c) of the present invention is the crosslinked hexaaryl of the present invention.
- Irradiation or heating of electromagnetic waves such as ultraviolet light or visible light, including bisimidazole compounds, asymmetrically bridged hexaarylbisimidazole compounds and / or multimeric compounds such as dimers, trimers or tetramers of these compounds
- “include” means that the compound of the present invention is included as a compounding component in the composition, and the compound of the present invention is chemically bonded to the molecular structure of a solvent, a resin, or the like by a covalent bond or a coordinate bond. If both are meant.
- the compound of the present invention may be mixed with a predetermined solvent because it has a fast color-developing property and a high color density even in a solvent.
- a predetermined solvent Preferred examples of the solvent to be mixed include benzene, toluene, chloroform, methylene chloride and the like, and benzene and toluene are more preferable from the viewpoint of the stability of the color former. Two or more of these solvents may be mixed.
- the compound of the present invention has a high color development / decoloration property and a high color density even in a solid phase such as a resin such as a plastic material or glass, so that it can be mixed with a solid such as a predetermined resin or glass. Alternatively, it may be chemically bonded as a functional site to the main chain of the resin.
- the resin to be mixed include polymethyl methacrylate, polystyrene, polyimide, Teflon (registered trademark), and polycarbonate. Among them, polymethyl methacrylate and Teflon (registered trademark) are preferable from the viewpoint of the stability of the colored body. ), Polycarbonate is more preferred.
- photochromic material containing the compound, solvent and resin examples include light control materials such as sunglasses, sun visors, T-shirts and accessories that change the color of lenses in response to sunlight, ultraviolet light
- light control materials such as sunglasses, sun visors, T-shirts and accessories that change the color of lenses in response to sunlight, ultraviolet light
- hologram materials ink materials such as security ink, optical information display devices, optical switch elements, and photoresist materials can be used.
- the compound of an embodiment of the present invention is a photochromic compound characterized by particularly high-speed decoloring characteristics, and can also realize a photochromic characteristic that is visually decolored simultaneously with the stop of light irradiation.
- the decoloring rate of the compound of the present invention is measured by, for example, measuring a solution (concentration 2.1 ⁇ 10 ⁇ 4 mol / l) using benzene as a solvent by a nanosecond laser flash photolysis method described later.
- the half-life of the body is preferably 1 to 200 ms, more preferably 1 to 100 ms, and even more preferably 1 to 40 ms.
- the compound of this invention shows a high coloring density compared with the conventional photochromic compound.
- a multimeric compound such as a dimer, trimer or tetramer obtained by polymerizing a plurality of structural units containing a bisimidazole skeleton has a remarkably high color density per molar concentration.
- the color density of the compound of the present invention is measured by, for example, measuring a solution using benzene as a solvent (concentration 2.1 ⁇ 10 ⁇ 4 mol / l) by a nanosecond laser flash photolysis method described later, and measuring visible light.
- the optical density ( ⁇ OD) of the region shows a value of 0.01 or more, preferably 0.01 to 1.0, more preferably 0.1 to 1.0, and still more preferably 0. The range is from 5 to 1.0.
- the production method of the compound of the present invention is not particularly limited, and may be synthesized by appropriately using a known method.
- the above pseudogem-bisDPI [2.2] paracyclophane can be synthesized via the following dialdehyde [2.2] paracyclophane-4,13-dicarbaldehyde, etc.
- a synthetic route in which this is reacted with an arbitrary benzyl derivative including a 1,2-diketone is conceivable (Psiorz, M. et al. Chem. Ber., 1987, 120, 1825 .; Hopf, H. et al. Eur. J. Org. Chem., 2002, 2298. Hopf, H. et al. Eur. J., 2005, 11, 6944. etc.).
- the compounds of the present invention were synthesized using the methods described above or variations thereof, but such synthetic methods can be performed using, for example, [2.2] paracyclophane-4,13-dicarbaldehyde. Since the carbaldehyde compound is used as an intermediate, only the symmetrical compound having the same triarylimidazole structure containing aryl groups A and B can be synthesized as the final product.
- the present inventors have succeeded in synthesizing a novel compound represented by the general formula (1), and have succeeded in synthesizing an asymmetrical present compound by using the compound for the synthesis of the present compound. did. Therefore, the present invention also includes a compound represented by the general formula (1).
- the bridging group X, the substituents R A to R D, and the subscripts m to p are the crosslinking group X, the substituents R A to R D defined in the general formula (2) and the like, respectively. It has the same meaning as the subscripts m to r.
- the compound of the present invention uses a precursor compound containing a monoaldehyde imidazole skeleton represented by the general formula (1) as a key compound, and the compound and the general formula ( It can be produced by reacting with any benzyl derivative containing a 1,2-diketone represented by 4).
- the substituents R E and R F and subscripts q and r of any benzyl derivative containing 1,2-diketone are the substituent R A defined in the general formula (2) or the like, respectively.
- a conventional synthesis in which a dialdehyde form [2.2] paracyclophane-4,13-dicarbaldehyde is reacted with an arbitrary benzyl derivative containing a 1,2-diketone.
- the molecular structure of photochromic compounds can be greatly improved in the degree of freedom in design and synthesis, and cross-linked hexaarylbisimidazole compounds and cross-linked hexaarylbisimidazoles with asymmetric structures can be obtained. It is possible to synthesize photochromic compounds having various structures such as compounds and multimeric compounds of these compounds obtained by polymerizing a plurality of structural units containing a bisimidazole skeleton.
- the method for producing a multimeric compound of the present invention includes a precursor compound containing a monoaldehyde imidazole skeleton represented by the general formula (1) as a key compound and the general formula (5).
- This is a production method in which an arbitrary benzyl derivative obtained by polymerizing a plurality of structural units containing 1,2-diketone is reacted.
- Formula (5) binds the number ⁇ of structural units comprising 1,2-diketone, linking groups M, the substituents R E and indices q are bound number ⁇ defined in each foregoing general formula (3) or the like has linking group L, and the same meanings as the substituents R E and indices q.
- a conventional synthesis method of reacting this with an arbitrary benzyl derivative containing a 1,2-diketone via a dialdehyde [2.2] paracyclophane-4,13-dicarbaldehyde and the like The molecular structure of a photochromic compound can be greatly improved in the degree of freedom in synthesis and synthesis, and a variety of multimeric compounds of the compound in which a plurality of structural units containing a bisimidazole skeleton are polymerized can be compared.
- a photochromic compound having a structure can be synthesized.
- Nanosecond laser flash photolysis measurement of pseudogem-bisDPI [2.2] paracyclophane The synthesized pseudoges-bisDPI [2.2] paracyclophane and two TAIRs prepared as Comparative Example 1
- the laser flash photolysis measurement of 1,8-NDPI-TPI-naphthalene introduced at the position was performed using a time-resolved spectrophotometer (model TSP-1000, manufactured by Unisoku Corporation).
- a quartz spectroscopic cell with an optical path length of 10 mm nanosecond laser flash photolysis measurement of pseudogem-bisDPI [2.2] paracyclophanebenzene solution (concentration 2.1 ⁇ 10 ⁇ 4 mol / l) was performed in an argon atmosphere. At 25 ° C.
- FIG. 2 shows that a benzene solution of pseudogem-bisDPI [2.2] paracyclophane is irradiated with a nanosecond ultraviolet laser (pulse width: 5 ns, output: 8 mJ) at a wavelength of 355 nm, and then 20 ms apart by a time-resolved spectrometer. The measurement result of visible and near-infrared absorption spectrum measured by is shown. From the results of FIG. 2, the pseudogem-bisDPI [2.2] paracyclophane of Example 1 reversibly exhibits a strong absorption band near 400 nm and a gentle weak absorption band over a wide range from 500 nm to 800 nm by ultraviolet light irradiation. Confirmed to generate.
- FIG. 3 also shows the time of the 400 nm absorption band that appears simultaneously when a benzene solution of pseudogem-bisDPI [2.2] paracyclophane is irradiated with a 355 nm wavelength nanosecond ultraviolet laser (pulse width: 5 ns, output: 8 mJ). The measurement result of attenuation is shown. From the results shown in FIG. 3, in the pseudogem-bisDPI [2.2] paracyclophane of Example 1, the absorption band generated by the irradiation of the nanosecond ultraviolet laser has a half-life of 33 ms at 25 ° C. after the irradiation of the nanosecond ultraviolet laser is stopped. It was confirmed that it decayed quickly.
- FIG. 4 shows a time-resolved spectroscopic apparatus immediately after irradiation of a nanosecond ultraviolet laser (pulse width: 5 ns, output: 8 mJ) with a wavelength of 355 nm to a dichloromethane solution of pseudogem-bisDPI [2.2] paracyclophane.
- the measurement result of the visible / near infrared absorption spectrum measured by is shown. From the results shown in FIG.
- FIG. 5 also shows the time of the 400 nm absorption band appearing simultaneously with irradiation of a nanosecond ultraviolet laser (pulse width: 5 ns, output: 8 mJ) with a wavelength of 355 nm onto a dichloromethane solution of pseudogem-bisDPI [2.2] paracyclophane. The measurement result of attenuation is shown. From the results of FIG. 5, it was confirmed that in the dichloromethane solution as a polar solvent, the absorption band generated by the irradiation with the nanosecond ultraviolet laser rapidly decays with a half-life of 15 ms at 25 ° C. after the irradiation with the nanosecond ultraviolet laser was stopped. It was done.
- the 1,8-NDPI-TPI-naphthalene benzene solution of Comparative Example 1 had a half-life at 25 ° C. of about 179 ms. It can be seen that this compound has a remarkably fast decoloring rate of about 5 times that of the compound of Comparative Example 1. That is, the pseudogem-bisDPI [2.2] paracyclophane of the present invention does not diffuse into the medium because the two TAIRs generated are constrained by the crosslinking group, and the two TAIRs and the crosslinking group This indicates that the photochromic compound has a fast color-decoloring property because it does not have a more stable resonance structure than necessary.
- Example 2 Measurement of nanosecond laser flash photolysis of PMMA containing pseudogem-bisDPI [2.2] paracyclophane 19.8 mg of polymethyl methacrylate (PMMA) (Aldrich, molecular weight 350,000) was dissolved in 0.4 ml of chloroform solvent. Then, 4.0 mg of pseudogem-bisDPI [2.2] paracyclophane synthesized therein was dissolved to prepare a solution (concentration 20 wt%). A 200 ⁇ m thick PMMA thin film containing pseudogem-bisDPI [2.2] paracyclophane was produced by casting using this solution. The nanosecond laser flash photolysis of this PMMA thin film was measured at 25 ° C.
- PMMA polymethyl methacrylate
- pseudogem-bisDPI [2.2] paracyclophane of the present invention has a strong absorption band around 400 nm and a wide area from 500 nm to 800 nm in the solid phase PMMA resin as well as the benzene solution. It was confirmed that a gentle weak absorption band was generated reversibly. Further, from this nanosecond laser flash photolysis measurement, pseudogem-bisDPI [2.2] paracyclophane of the present invention has a generated absorption band of about 13 ms at 25 ° C. even in solid phase PMMA resin. It was confirmed that it attenuated promptly.
- FIG. 7 shows the measurement results of the time decay of the 400 nm absorption band measured before irradiation with the nanosecond ultraviolet laser and each time the nanosecond ultraviolet laser was irradiated 1,000 times.
- FIG. 8 shows a comparison of measurement results of time attenuation before irradiation with the nanosecond ultraviolet laser (0th laser irradiation) and after irradiation with the nanosecond ultraviolet laser 10,000 times.
- the pseudogem-bisDPI [2.2] paracyclophane of the present invention does not diffuse into the medium because the two TAIRs generated are constrained by the bridging group, and thus has extremely high repetition durability. It shows that it is a photochromic compound.
- reaction solution A In an eggplant flask having an internal volume of 100 ml, 2.00 g (8.72 mmol) of 2- (4-bromophenyl) -1,3-dioxolane was dissolved in 30 ml of THF and stirred at ⁇ 78 ° C. for 30 minutes. 6.50 ml (10.4 mmol) of a 1.66M n-BuLi hexane solution was gradually added dropwise at the same temperature and stirred for 2 hours (reaction solution A).
- FIG. 10 the measurement result of the visible and near-infrared absorption spectrum on the same conditions as Example 1 is shown.
- the absorption spectrum of the photochromic material by ultraviolet irradiation of pseudogem-BMPI-DPI [2.2] paracyclophane is pseudogem-bisDPI [2.2] paracyclophane, which is an unsubstituted product.
- the entire wavelength shifted and a change in spectrum shape was confirmed.
- FIG. 11 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the result of FIG. 11, the time change of absorbance at 400 nm of pseudogem-BMPI-DPI [2.2] paracyclophane is similar to that of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted product. It was confirmed to decay with a half-life ( ⁇ 50 ms).
- Example 7 Synthesis of paracyclophan-4-bis (3,4-dimethoxyphenyl) imidazole-13-diphenylimidazole (pseudogem-DMIH-DPIH [2.2] paracyclophane) Obtained by the synthesis of Example 4 above [2. 2] pseudogem-DMIH-DPIH [2.2] paracyclophane was synthesized according to the following synthetic route using paracyclophane-4-diphenylimidazole-13-carbaldehyde. The synthesis route is shown below.
- pseudogem-DMI-DPI [2.2] paracyclophane of the present invention for the purpose of controlling photochromic properties was synthesized.
- all solvents were degassed by bubbling with nitrogen for 30 minutes.
- pseudogem-DMIH-DPIH [2.2] paracyclophane (0.10 g, 0.13 mmol) obtained in the above synthesis was dissolved in 20 mL of degassed benzene, and potassium ferricyanide (2.3 g, 6. 9 mmol) and potassium hydroxide (0.78 g, 14 mmol) aqueous solution (12 mL) were added, and the mixture was vigorously stirred for 60 minutes.
- the benzene layer was extracted, washed thoroughly with water, and concentrated under reduced pressure to obtain the desired pseudo-DMI-DPI [2.2] paracyclophane (0.094 g, 94%).
- the measurement results of NMR are shown below.
- FIG. 15 the measurement result of the visible and near-infrared absorption spectrum on the same conditions as Example 1 is shown. From the results shown in FIG. 15, the absorption spectrum of the pseudochrome-DMI-DPI [2.2] paracyclophane by irradiation with ultraviolet light shows that the pseudogem-bisDPI [2.2] paracyclophane, which is an unsubstituted product, is the above-mentioned unsubstituted product. When compared with the absorption spectrum of, a slightly longer wavelength shift was observed, and a change in the spectrum shape was confirmed. As a result, the light colored body looks blue-green to the naked eye.
- FIG. 16 shows the measurement results of time decay of the 400 nm absorption band under the same conditions as in Example 1.
- Example 8 Synthesis of paracyclophane-4,13-bis (3,4-dimethoxyphenyl) imidazole (pseudogem-bisDMIH [2.2] paracyclophane) [2.2] paracyclophane-4,13-dicarbaldehyde Using, pseudogem-bisDMIH [2.2] paracyclophane was synthesized according to the following synthetic route. The synthesis route is shown below.
- pseudogem-bisDMI [2.2] paracyclophane decolored body The absorption spectrum of pseudogem-bisDMI [2.2] paracyclophane obtained by the above synthesis was confirmed by ultraviolet-visible absorption spectrum measurement.
- pseudogem-bisDMI [2.2] paracyclophane was dissolved in benzene (concentration: 2.1 ⁇ 10 ⁇ 5 M) and measured at 25 ° C.
- FIG. 17 shows the measurement result of the ultraviolet-visible absorption spectrum. From the results of FIG. 17, pseudogem-bisDMI [2.2] paracyclophane also has an absorption band in the visible light region of 400 nm or more. The molar extinction coefficient ⁇ at 400 nm was 600.
- FIG. 18 shows the measurement results of the visible / near infrared absorption spectrum under the same conditions as in Example 1. From the results shown in FIG. 18, the absorption spectrum of the pseudochrome-bisDMI [2.2] paracyclophane by irradiation with ultraviolet light shows the absorption spectrum of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted substance. Compared with the spectrum, the wavelength shifted and a change in the spectrum shape was confirmed. As a result, the light colored body appears green to the naked eye.
- pseudogem-bisDMI [2.2] paracyclophane has absorption in a visible light region of 400 nm or more, and thus it can be confirmed that it is colored by sunlight and room light.
- FIG. 19 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the result of FIG. 19, the time change of absorbance at 400 nm of pseudogem-bisDMI [2.2] paracyclophane is longer than the half-life of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted product. It was confirmed to decay with a half-life ( ⁇ 200 ms).
- Example 9 Synthesis of paracyclophan-4- (3-phenyl-4-pyrenyl) imidazole-13-diphenylimidazole (pseudogem-PYIH-DPIH [2.2] paracyclophane) obtained by the synthesis of Example 4 above [2. 2] pseudogem-PYIH-DPIH [2.2] paracyclophane was synthesized according to the following synthetic route using paracyclophane-4-diphenylimidazole-13-carbaldehyde. The synthesis route is shown below.
- FIG. 20 shows the measurement results of the ultraviolet-visible absorption spectrum.
- pseudogem-PYI-DPI [2.2] paracyclophane has a strong absorption band in the visible light region of 400 nm or more.
- the molar extinction coefficient ⁇ at 400 nm was 3200.
- Tetramethoxy-substituted product pseudogem-bisDPI [2.2] paracyclophane, pseudogem-bisDMI [2.2] paracyclophane
- unsubstituted product pseudogem-bisDPI [2.2] paracyclophane
- FIG. 21 the measurement result of the visible and near-infrared absorption spectrum on the same conditions as Example 1 is shown. From the results shown in FIG. 21, the absorption spectrum of the pseudochrome-PYI-DPI [2.2] paracyclophane by irradiation with ultraviolet light shows that the pseudogem-bisDPI [2.2] paracyclophane, which is the above-mentioned unsubstituted substance, is shown in FIG. When compared with the absorption spectrum of, a slightly longer wavelength shift was observed, and a change in the spectrum shape was confirmed.
- FIG. 22 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG.
- the time change of absorbance at 400 nm of pseudogem-PYI-DPI [2.2] paracyclophane is shorter by half than that of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted product. Attenuation was confirmed at the period ( ⁇ 15 ms).
- Example 10 Synthesis of paracyclophan-4- (3-phenyl-4-pyrenyl) imidazole-13-diphenylimidazole (pseudogem-bisPYIH [2.2] paracyclophane) Obtained by the synthesis of Example 4 above [2.2] Using pseudocyclophane-4-diphenylimidazole-13-carbaldehyde, pseudogem-bisPYIH [2.2] paracyclophane was synthesized according to the following synthetic route. The synthesis route is shown below.
- pseudogem-bisPYI [2.2] paracyclophane decolored body The absorption spectrum of pseudogem-bisPYI [2.2] paracyclophane obtained by the above synthesis was confirmed by ultraviolet-visible absorption spectrum measurement.
- pseudogem-bisPYI [2.2] paracyclophane was dissolved in benzene (concentration: 2.0 ⁇ 10 ⁇ 5 M) and measured at 25 ° C.
- FIG. 23 shows the measurement result of the ultraviolet-visible absorption spectrum.
- pseudogem-bisPYI [2.2] paracyclophane has a strong absorption band in the visible light region of 400 nm or more.
- the molar extinction coefficient ⁇ at 400 nm was 8300.
- Tetramethoxy-substituted product pseudogem-bisDPI [2.2] paracyclophane, pseudogem-bisDMI [2.2] paracyclophane
- unsubstituted product pseudogem-bisDPI [2.2] paracyclophane
- FIG. 24 shows the measurement results of the visible / near infrared absorption spectrum under the same conditions as in Example 1. From the results of FIG. 24, the absorption spectrum of the pseudochrome-bisPYI [2.2] paracyclophane by irradiation with ultraviolet light shows the absorption spectrum of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted substance. Compared with the spectrum, the wavelength shifted slightly and a change in the spectrum shape was confirmed.
- FIG. 25 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results of FIG.
- pseudogem-bisMCIH [2.2] paracyclophane (0.10 g, 0.12 mmol) obtained in the above synthesis was dissolved in 18 mL of degassed benzene, and potassium ferricyanide (2.0 g, 6.0 mmol) was dissolved. Potassium hydroxide (0.67 g, 12 mmol) in water (12 mL) was added and stirred vigorously for 30 minutes. The benzene layer was extracted, washed thoroughly with water, and then concentrated under reduced pressure to obtain the desired pseudogem-bisMCI [2.2] paracyclophane (0.088 g, 87%). Since the oxidant is a complex mixture of isomers, clear assignment by 1 H-NMR could not be made.
- pseudogem-bisMCI [2.2] paracyclophane decolorant Absorption spectrum characteristics of pseudogem-bisMCI [2.2] paracyclophane decolorant The absorption spectrum of pseudogem-bisMCI [2.2] paracyclophane obtained by the above synthesis was confirmed by ultraviolet-visible absorption spectrum measurement. pseudogem-bisMCI [2.2] paracyclophane was dissolved in benzene (concentration: 2.1 ⁇ 10 ⁇ 5 M) and measured at 25 ° C.
- FIG. 26 shows the measurement result of the visible absorption spectrum.
- pseudogem-bisMCI [2.2] paracyclophane also has an absorption band in the visible light region of 400 nm or more.
- the molar extinction coefficient ⁇ at 400 nm was 400.
- FIG. 28 shows the measurement results of time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG. 28, the time change of absorbance at 400 nm of pseudogem-bisMCI [2.2] paracyclophane is shorter than the half-life of pseudogem-bisDPI [2.2] paracyclophane, which is the unsubstituted product. It was confirmed to decay with a half-life ( ⁇ 10 ms).
- Example 12 Synthesis of paracyclophan-4-phenanthroimidazole-13-diphenylimidazole (pseudogem-PHIH-DPIH [2.2] paracyclophane) [2.2] paracyclophane-- obtained by the synthesis of Example 4 above Using 4-diphenylimidazole-13-carbaldehyde, pseudogem-PHIH-DPIH [2.2] paracyclophane was synthesized according to the following synthetic route. The synthesis route is shown below.
- the compound pseudogem-PHI-DPI [2.2] paracyclophane of the present invention aimed at precise control of photochromic properties was synthesized.
- FIG. 30 the measurement result of the visible and near-infrared absorption spectrum on the same conditions as Example 1 is shown. From the results shown in FIG. 30, the absorption spectrum of the pseudochrome-PHI-DPI [2.2] paracyclophane by irradiation with ultraviolet light shows that the pseudogem-bisDPI [2.2] paracyclophane, which is the above-mentioned unsubstituted substance, is shown in FIG. It was confirmed that the absorption spectrum was very similar.
- FIG. 31 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the result of FIG.
- Example 13 Synthesis of paracyclophane-4- (3-p-dimethylaminophenyl-4-phenyl) imidazole-13-diphenylimidazole (pseudogem-DAIH-DPIH [2.2] paracyclophane) Obtained by the synthesis of Example 4 above. Furthermore, pseudogem-DAIH-DPIH [2.2] paracyclophane was synthesized using [2.2] paracyclophane-4-diphenylimidazole-13-carbaldehyde according to the following synthetic route. The synthesis route is shown below.
- pseudogem-DAI-DPI [2.2] paracyclophane of the present invention for the purpose of controlling photochromic properties was synthesized.
- all solvents were degassed by bubbling with nitrogen for 30 minutes.
- pseudogem-DAIH-DPIH [2.2] paracyclophane (0.062 g, 0.091 mmol) obtained in the above synthesis was dissolved in 24 mL of degassed benzene, and potassium ferricyanide (1.7 g, 5. 1 mmol) and potassium hydroxide (0.44 g, 7.9 mmol) in water (24 mL) were added, and the mixture was vigorously stirred for 20 minutes.
- the benzene layer was extracted, washed thoroughly with water, and concentrated under reduced pressure to obtain the desired pseudogem-DAI-DPI [2.2] paracyclophane (0.017 g, 26%).
- the measurement results of NMR are shown below.
- the absorption spectrum of the pseudochrome-DAI-DPI [2.2] paracyclophane by irradiation with ultraviolet light shows that the pseudogem-bisDPI [2.2] paracyclophane, which is the above-mentioned unsubstituted substance, is shown in FIG.
- a change in spectral shape was confirmed.
- FIG. 34 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG. 34, the time change of absorbance at 750 nm of pseudogem-DAI-DPI [2.2] paracyclophane is shown in the half-life of pseudogem-bisDPI [2.2] paracyclophane, which is the aforementioned unsubstituted product ( Compared with 33 ms), it was confirmed that it attenuated with the same half-life (31 ms). In addition, when the absorbance ( ⁇ OD, ie, color density) of the colored product under the same conditions was compared, it was about 4 times larger due to the introduction of the dimethylamino group. This is because the molar extinction coefficient in the ultraviolet region has greatly increased as described above.
- Example 14 Synthesis of pseudogem-bisDPIH [2.2] paracyclophane having an acrylate group (Ac-pseudogem-bisDPIH [2.2] paracyclophane) [2.2] paracyclophane- obtained in the synthesis of Example 4 above Ac-pseudogem-bisDPIH [2.2] paracyclophane was synthesized using 4-diphenylimidazole-13-carbaldehyde according to the following synthetic route. The synthesis route is shown below.
- the benzene layer was extracted, washed thoroughly with water, and then concentrated under reduced pressure to obtain the target Ac-pseudogem-bisDPI [2.2] paracyclophane (0.050 g, quant.). Since the oxidant is a complex mixture of isomers, clear assignment by 1 H-NMR could not be made.
- FIG. 35 shows the measurement results of the visible / near infrared absorption spectrum under the same conditions as in Example 1. From the results shown in FIG. 35, the absorption spectrum of the photochromic substance by ultraviolet irradiation of Ac-pseudogem-bisDPI [2.2] paracyclophane is pseudogene-BMPI-DPI [2.2] paracyclophane, which is the above-mentioned similar compound. Compared with the absorption spectrum of the fan, it was confirmed to be almost the same.
- FIG. 36 shows the measurement results of time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG.
- Example 15 Synthesis of poly pseudogem-bisDPIH [2.2] paracyclophane Using the Ac-pseudogem-bisDPI [2.2] paracyclophane obtained in the synthesis of Example 13 above, the poly pseudogem-bisDPIH is synthesized according to the following synthetic route. [2.2] Paracyclophane was synthesized. The synthesis route is shown below.
- FIG. 37 the measurement result of the visible and near-infrared absorption spectrum of the same conditions as Example 1 is shown. From the results shown in FIG. 37, the absorption spectrum of the photocolored product of poly pseudogem-bisDPIH [2.2] paracyclophane by irradiation with ultraviolet light shows that of the aforementioned monomer, Ac-pseudogem-bisDPI [2.2] paracyclophane. Compared to the absorption spectrum, it was confirmed to be almost the same.
- FIG. 38 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG.
- the time change of the absorbance at 400 nm of poly pseudogem-bisDPIH [2.2] paracyclophane is similar to that of the above-mentioned similar compound, Ac-pseudogem-bisDPI [2.2] paracyclophane. It was confirmed to decay with a half-life ( ⁇ 50 ms).
- FIG. 39 shows the measurement results of the visible / near infrared absorption spectrum under the same conditions as in Example 1. From the results shown in FIG. 39, the absorption spectrum of the photocolored product of poly pseudogem-bisDPIH [2.2] paracyclophane by irradiation with ultraviolet light shows that of the aforementioned monomer Ac-pseudogem-bisDPI [2.2] paracyclophane. Similar to the absorption spectrum, it was confirmed to have wide absorption in the visible light region.
- FIG. 40 shows the measurement results of the time decay of the 400 nm absorption band under the same conditions as in Example 1. From the results shown in FIG. 40, it was confirmed that the time change of the absorbance of poly pseudogem-bisDPIH [2.2] paracyclophane at 400 nm attenuated completely in about 1 second.
- Example 16 Synthesis of a pseudomer-bisDPI [2.2] paracyclophane dimer [2.2] paracyclophane- 4-diphenylimidazole-13-carbaldehyde obtained in the synthesis of Example 4 was used to According to the synthesis route, pseudogem-bisDPIH [2.2] paracyclophane dimer was synthesized.
- the measurement results of NMR are shown below.
- pseudodim-bisDPI [2.2] paracyclophane dimer was synthesized according to the following synthesis route.
- all solvents were degassed by bubbling with nitrogen for 30 minutes.
- the pseudogem-bisDPIH [2.2] paracyclophane dimer (0.045 g, 0.041 mmol) obtained by the above synthesis was dissolved in 20 mL of degassed benzene, and potassium ferricyanide (1.3 g, 4 0.1 mmol) and potassium hydroxide (0.55 g, 9.8 mmol) aqueous solution (7.5 mL) were added, and the mixture was vigorously stirred for 30 minutes.
- the benzene layer was extracted, washed thoroughly with water, and concentrated under reduced pressure.
- Photochromic characteristics of pseudogem-bisDPI [2.2] paracyclophane dimer The photochromic characteristics of pseudogem-bisDPI [2.2] paracyclophane were measured using a nanosecond laser flash photolithography under the same conditions as in Example 1. Confirmed by cis measurement. Measurement was carried out after dissolving the pseudogem-bisDPI [2.2] paracyclophane dimer in degassed benzene (concentration: 1.07 ⁇ 10 ⁇ 4 mol / l) under an argon atmosphere. As shown in FIG.
- Example 17 Synthesis of pseudogem-bisDPI [2.2] paracyclophane trimer Using [2.2] paracyclophane- 4-diphenylimidazole-13-carbaldehyde obtained in the synthesis of Example 4 above, the following According to the synthetic route, pseudogem-bisDPIH [2.2] paracyclophane trimer was synthesized.
- pseudomer-bisDPI [2.2] paracyclophane trimer was synthesized according to the following synthesis route.
- all solvents were degassed by bubbling with nitrogen for 30 minutes.
- pseudogem-bisDPIH [2.2] paracyclophane trimer (0.014 g, 7.7 ⁇ mol) obtained in the above synthesis was dissolved in 15 mL of degassed benzene, and potassium ferricyanide (0.52 g, 2 0.1 mmol) and potassium hydroxide (0.53 g, 9.5 mmol) aqueous solution (10 mL) were added, and the mixture was vigorously stirred for 1 hour.
- the benzene layer was extracted, washed thoroughly with water, and concentrated under reduced pressure.
- the measurement results of NMR are shown below.
- Photochromic properties of pseudogem-bisDPI [2.2] paracyclophane trimer Laser flash photolithography measurement of pseudogem-bisDPI [2.2] paracyclophane trimer under the same conditions as in Example 1 Confirmed by Measurement was carried out after dissolving the pseudogem-bisDPI [2.2] paracyclophane trimer in degassed benzene (concentration 5.64 ⁇ 10 ⁇ 5 mol / l) under an argon atmosphere. As shown in FIG. 10, it was confirmed that the change in absorbance at 400 nm attenuated with a half-life ( ⁇ 60 ms) comparable to that of the monomer pseudoges-bisDPI [2.2] paracyclophane. Further, as shown in FIG.
- the photochromic material containing the cross-linked hexaarylbisimidazole compound of the present invention is superior in thermal stability and temporal stability compared to conventional photochromic materials, has fast color development / decoloration characteristics and high color density, It is possible to realize a photochromic characteristic that visually disappears at the same time as light irradiation is stopped.
- by controlling the structure of the two triarylimidazole moieties to a compound having an asymmetric structure that is optimally designed according to the application and purpose it is possible to realize precise control of color tone and density of color development.
- the production method of the present invention for synthesizing the precursor compound of the present invention as a key compound can increase the degree of freedom in designing and synthesizing the molecular structure as compared with the conventional production method. Synthesis of photochromic compounds having various structures such as multimeric compounds can be realized. Therefore, the cross-linked hexaarylbisimidazole compound of the present invention, a method for producing the compound, and a precursor compound used in the production method include an excellent photochromic compound and a light-modulating material that reacts with sunlight as its production method, In a wide field such as an optical switch element and an optical information display device, the industrial applicability is particularly high.
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Abstract
Description
しかし、これら従来のフォトクロミック化合物は、構造の異なる異性体間を行き来するために、消色反応に少なくとも数分から数秒の時間を要するという問題点があった。また、HABIでは、炭素-窒素結合が開裂して生成する2つのトリアリールイミダゾリルラジカルが媒体中に拡散して、ラジカルの再結合に時間がかかるため、消色反応速度が遅く、また繰り返し耐久性等の経時安定性に劣るなどの問題点を有していた。
2つのTAIR部位の構造を用途に応じて最適に分子設計した非対称構造の架橋型ヘキサアリールビスイミダゾール化合物とすることにより、発色の色調および濃度の精密制御が可能となることを見出した。本発明者らはさらに、イミダゾール骨格とアルデヒド基を有する特定の構造の前駆体化合物をキー化合物として合成を行うことにより、分子構造の設計と合成の自由度を高めることが可能なフォトクロミック化合物の製造方法を実現できることを見出した。そしてさらに研究を進めた結果、本発明を完成するに至った。
lは1~5の整数であり、
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
RXは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、炭素数1~20の直鎖状または分枝状のアルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)からなる群より選ばれる1種または2種以上の置換基であり、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
oおよびpは、それぞれ互いに独立して0~5の整数であり、
置換基RAおよびRBは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基、カルバゾール基、炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状の、アルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
さらに前記置換基RA~RDは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記置換基RCおよびRDと同一の意味を有する置換基を有しないまたは有する、で表される化合物に関する。
さらに、本発明は、mおよびnが0であり架橋基Xが非置換であるか、または置換基RA、RBおよびRXが、メチル基である、上記の化合物に関する。
さらにまた、本発明は、下記一般式(1a)
また本発明は、下記一般式(2)
lは1~5の整数であり、
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
RXは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、ならびに炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
A~Fの6個のアリール基は、互いに独立して置換基RA~RFを有しないまたは有し、
o~rは、それぞれ互いに独立して0~5の整数であり、
置換基RAおよびRBは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、ならびに炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
置換基RC~RFは、互いに独立して同一または異なり、前記置換基RAおよびRBと同一の意味を有する置換基、下記部分構造式(i)
前記置換基RA~RFは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記置換基RC~RFと同一の意味を有する置換基を有しないまたは有する、で表される化合物に関する。
また本発明は、アリール基Aを含むトリアリールイミダゾール部位と、アリール基Bを含むトリアリールイミダゾール部位との構造が異なり非対称である、前記化合物に関する。
さらにまた本発明は、架橋基が、トリアリールイミダゾリルラジカル(TAIR)と共役しない架橋基である、前記化合物に関する。
さらに本発明は、架橋基が、-CH2CH2-基、-CH2CH2CH2-基、-CH2CH2CH2CH2-基、-Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2Si(CH3)2-基、-SiH2OSiH2-基、-Si(CH3)2OSi(CH3)2-基、-Si(CH3CH2)2OSi(CH2CH3)2-基、-CH2SCH2-基、-CH2OCH2-基、-OCH2CH2O-基および-CH2OCH2CH2OCH2-基からなる群より選ばれる1種または2種以上の架橋基である、前記化合物に関する。
また本発明は、一般式(2)が、下記一般式(2a)
o~rは、それぞれ互いに独立して0~5の整数であり、
置換基RAおよびRBならびにRC~RFは、互いに独立して同一または異なり、それぞれ上記の一般式(2)における置換基RAおよびRBならびにRC~RFと同一の意味を有する、で表される、前記化合物に関する。
lは1~5の整数であり、
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
αは1~9の整数であり、
連結基Lは、1つの環構造当たり炭素原子5~8個の芳香環1~12個からなる単環または多環芳香族化合物であり、
ビスイミダゾール骨格を含む構造単位中のA~Eの5個のアリール基は、互いに独立して置換基RAおよびRBならびにRC~REを有しないまたは有し、
置換基RAおよびRB、RC~REならびにRXのすべては、互いに独立して同一または異なり、それぞれ上記の一般式(2)における置換基RAおよびRB、RC~REならびにRXと同一の意味を有し、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
o~rは、それぞれ互いに独立して0~5の整数であり、
前記置換基RAおよびRBならびにRC~REは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上および前記連結基Lの芳香環上に、さらに置換基RLを有しないまたは有する、で表される化合物に関する。
該アリール基の有する置換基RAおよびRBならびにRC~RFのすべては、互いに独立して同一または異なり、それぞれ上記の一般式(2)における置換基RAおよびRBならびにRC~RFと同一の意味を有し、
m、nおよびrは、それぞれ互いに独立して0~4の整数であり、
o~qは、それぞれ互いに独立しておよび0~5の整数である、
で表される前記化合物に関する。
mおよびnは、それぞれ互いに独立して0~4の整数であり、
o~qは、それぞれ互いに独立して0~5の整数であり、
rは0~3の整数である、
で表される前記化合物に関する。
また本発明は、架橋基が、-CH2CH2-基、-CH2CH2CH2-基、-CH2CH2CH2CH2-基、-Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2Si(CH3)2-基、-SiH2OSiH2-基、-Si(CH3)2OSi(CH3)2-基、-Si(CH3CH2)2OSi(CH2CH3)2-基、-CH2SCH2-基、-CH2OCH2-基、-OCH2CH2O-基および-CH2OCH2CH2OCH2-基からなる群より選ばれる1種または2種以上の架橋基である、前記化合物に関する。
さらにまた本発明は、mおよびnが0であり架橋基Xが非置換であるか、または置換基RA、RBおよびRXが、メチル基である、前記の化合物に関する。
で表される前記化合物に関する。
Bは、上記の化合物の誘導体であり、
A-Bは、前記連結基と前記化合物の置換基RC~RFおよびRLから選ばれる1個または2個の置換基との結合を表し、
γは0以上の整数であり、
δ、ε、ζおよびηは、それぞれ互いに独立して1以上の整数である、で表される繰り返し構造単位を有する、高分子化合物に関する。
さらに本発明は、前記いずれかに記載の化合物および/または高分子化合物を含有する溶媒に関する。
また本発明は、前記いずれかに記載の化合物および/または高分子化合物を含有する樹脂に関する。
さらに本発明は、フォトクロミック性を有する材料組成物であって、前記いずれかに記載の化合物、高分子化合物、フォトクロミック材料、溶媒および樹脂からなる群より選ばれる1種または2種以上を含有する、調光材料、ホログラム材料、インク材料、光情報表示デバイス、光スイッチ素子およびフォトレジスト材料からなる群から選択される、前記材料組成物に関する。
該置換基REおよびRFは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、炭素数1~20の直鎖状または分枝状のアルキル基、アルキルアミノ基、アルコキシ基、-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基、-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、下記部分構造式(i)
qおよびrは、互いに独立して0~5の整数であり、
前記アリール基が有する置換基は、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記アリール基の有する置換基と同一の意味を有する置換基を有しないまたは有する、
で表される化合物とを反応させる、前記製造方法に関する。
連結基Mは、1つの環構造当たり炭素原子5~8個の芳香族環1~12個からなる単環または多環芳香族化合物であり、
1,2-ジケトン骨格を含む構造単位中のアリール基は、置換基REを有しないまたは有し、
該アリール基の有する置換基のすべては、互いに独立して同一または異なり、上記の一般式(4)のREと同じ意味を有し、
qは1~5の整数であり、
前記置換基REは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上および前記連結基Mの芳香環上に、さらに置換基RMを有しないまたは有する、
で表される化合物とを反応させる、前記製造方法に関する。
上記各一般式中、2つのアリール基AおよびBは、架橋基X(ただし、1,8-ナフタレニレンを除く)によって互いに炭素原子が架橋されており、架橋基Xの本数lは、有機合成の工程数、用途に応じたフォトクロミック特性、熱安定性等を考慮して、好ましくは1~3であり、より好ましくは2または3である。また、AおよびBの2つが最も簡単なアリール基であるフェニル基の場合には、架橋基が結合する位置は、AおよびBの2つのフェニル基のオルト位、メタ位およびパラ位のいずれであってもよい。さらに、分岐構造を有する架橋基により、1本の架橋基の一端または両端が2以上の炭素原子と結合して架橋してもよい。
さらに、本発明の化合物のアリール基A~F上の置換基の数、種類、該置換基により形成される芳香環等の構造等により、AおよびBの2つのアリール基間の距離および角度、2つのイミダゾール環の距離および角度、分子の柔軟性等を調整して、本発明の化合物の用途に応じて、発消色反応速度や発色濃度等のフォトクロミック特性を適宜調整することも可能である。
上記一般式および部分構造式(vi)中、2つのアリール基AおよびBは、架橋基X(ただし、1,8-ナフタレニレンを除く)によって互いに炭素原子が架橋されており、該架橋基X中の水素原子は、互いに独立して1または2以上の任意の置換基RXによって置換されていてもよい。架橋基Xの本数lは、有機合成の工程数、用途に応じたフォトクロミック特性、熱安定性等を考慮して、好ましくは1~3であり、より好ましくは2または3である。また、AおよびBの2つが最も簡単なアリール基であるフェニル基の場合には、架橋基が結合する位置は、AおよびBの2つのフェニル基のオルト位、メタ位およびパラ位のいずれであってもよい。さらに、分岐構造を有する架橋基により、1本の架橋基の一端または両端が2以上の炭素原子と結合して架橋してもよい。
これらの架橋基の数、種類、長さにより、本発明の化合物のAおよびBの2つのアリール基間の距離および角度、2つのイミダゾール環の距離および角度、分子の柔軟性等を調整して、本発明の化合物の用途に応じて、発消色反応速度や発色濃度等のフォトクロミック特性を適宜調整することも可能である。
また、連結基Lは、1つの環構造当たり炭素原子5~8個の芳香環1~12個からなる単環または多環芳香族化合物であり、有機合成の経路設計および化合物の立体障害等の観点から、1つの環構造当たりの炭素原子数は、好ましくは6個であり、芳香環の数は、好ましくは1~8個、より好ましくは1~4個である。
なお上記芳香環は、環員に少なくとも1つの炭素原子を有することを条件として、1または2以上の炭素原子が酸素原子、窒素原子、硫黄原子等に置き変わった複素環であってもよく、芳香環の代わりに、炭素原子5~8個の脂肪族環であってもよく、上記ビスイミダゾール骨格を1つ含む構造単位に結合していない原子は1または2以上の任意の置換基RLで置換されていてもよい。任意の置換基RLは、好ましくは上記置換基RC~RFと同一の意味を有する。
また、単環または多環芳香族化合物である連結基Lの前記構造単位が結合していない芳香環上の炭素原子は、本発明の化合物の分子構造に対応して、1個または2個以上の置換基RLを有してもよく、例えば、置換基RFを有してもよく、添字rは、互いに独立して0~4の整数である。
さらに、架橋基X中の炭素原子およびケイ素原子等は、本発明の化合物の分子構造に対応して、1個または2個以上の置換基RXを有してもよい。
さらに、本態様の化合物に含まれるアリール基Aを含むトリアリールイミダゾール部位と、アリール基Bを含むトリアリールイミダゾール部位との構造は、同一であっても、また異なる置換基を結合させることなどにより異なる構造としてもよい。構造が異なり吸収波長等が異なる2つのTAIRを組み合わせることにより、本発明の化合物の用途に応じて、発色の色調や濃度等のフォトクロミック特性を精密に制御することも可能である。
さらに、本態様の化合物に含まれるヘキサアリールイミダゾリルラジカル(HAIR)構造中の5個のアリール基A~Eおよび連結基L上の置換基の数、種類、該置換基により形成される芳香環等の構造等により、アリール基AおよびB間の距離および角度、2個のイミダゾール環の距離および角度、分子の柔軟性、分子の吸収波長、各HAIR構造間の距離、多量体分子全体の構造等を調整して、本態様の化合物の用途に応じて、発消色反応速度や発色濃度等のフォトクロミック特性を適宜調整することも可能である。
また本発明の化合物は、上記一般式で表される多量体化合物をさらに複数重合させてもよく、例えば、pseudogem-bisDPI[2.2]パラシクロファンの2量体および3量体をさらに2個~3個重合させた4量体~9量体の多量体化合物等が挙げられる。
本発明の化合物の消色速度は、例えば、溶媒としてベンゼンを用いた溶液(濃度2.1×10-4mol/l)を、後述するナノ秒レーザーフラッシュフォトリシス測定方法により測定して、発色体の半減期が、好ましくは1~200msであり、より好ましくは1~100msであり、さらに好ましくは1~40msの範囲である。
本発明の化合物の発色濃度は、例えば、溶媒としてベンゼンを用いた溶液(濃度2.1×10-4mol/l)を、後述するナノ秒レーザーフラッシュフォトリシス測定方法により測定して、可視光領域の光学濃度(ΔO.D.)が、0.01以上の値を示し、好ましくは0.01~1.0であり、より好ましくは0.1~1.0であり、さらに好ましくは0.5~1.0の範囲である。
例えば、前記のpseudogem-bisDPI[2.2]パラシクロファンの合成経路としては、以下のような、ジアルデヒド体の[2.2]パラシクロファン-4,13-ジカルバルデヒド等を経由して、これと1,2-ジケトンを含む任意のベンジル誘導体とを反応させる合成経路等が考えられる(Psiorz, M. et al. Chem.Ber., 1987, 120, 1825. ; Hopf, H. et al. Eur. J. Org. Chem., 2002, 2298. Hopf, H. et al. Eur. J., 2005, 11, 6944.等参照)。
前記一般式(1)において、架橋基X、置換基RA~RDおよび添字m~pは、それぞれ前述の一般式(2)等において定義した架橋基X、置換基RA~RDおよび添字m~rと同一の意味を有する。
pseudogem-bisDPI[2.2]パラシクロファンの合成
本発明のフォトクロミック化合物、pseudogem-bisDPI[2.2]パラシクロファンの前駆体である、[2.2]パラシクロファン-4,13-(4,5-ジフェニル-1H-イミダゾール-イル)(以下、「pseudogem-bisDPIH[2.2]パラシクロファン」ともいう)は、[2.2]パラシクロファン-4,13-ジカルバルデヒドと任意のベンジル誘導体とを、酢酸中、酢酸アンモニウム存在下において加熱攪拌することで製造することができる。反応式を以下に示す。
合成したpseudogem-bisDPI[2.2]パラシクロファン、および比較例1として準備した2つのTAIRをナフタレンの1位と8位に導入した1,8-NDPI-TPI-ナフタレンのレーザーフラッシュフォトリシス測定を、時間分解分光測定装置(型式TSP-1000、株式会社ユニソク製)を用いて行った。光路長10mmの石英製分光セルを用いて、pseudogem-bisDPI[2.2]パラシクロファンベンゼン溶液(濃度2.1×10-4mol/l)のナノ秒レーザーフラッシュフォトリシス測定を、アルゴン雰囲気下、25℃で行った。
図4に、pseudogem-bisDPI[2.2]パラシクロファンのジクロロメタン溶液に波長355nmのナノ秒紫外レーザー(パルス幅:5ns、出力:8mJ)を照射した直後から、時間分解分光測定装置によって6ms間隔で測定した、可視・近赤外吸収スペクトルの測定結果を示す。図4の結果より、上記ベンゼン溶液中と同様に極性溶媒であるジクロロメタン溶液中においても紫外光照射により、400nm付近に強い吸収帯、500nmから800nmの広域にかけてなだらかな弱い吸収帯が可逆的に生成することを確認した。
pseudogem-bisDPI[2.2]パラシクロファンを含有するPMMAのナノ秒レーザーフラッシュフォトリシス測定
ポリメチルメタクリレート(PMMA)(Aldrich、分子量350,000)19.8mgを、クロロフォルム溶媒0.4mlに溶解して、これに合成したpseudogem-bisDPI[2.2]パラシクロファン4.0mgを溶解して溶液を調製した(濃度20wt%)。この溶液を用いてキャスト法により、pseudogem-bisDPI[2.2]パラシクロファンを含有する厚み200μmのPMMA薄膜を作製した。このPMMA薄膜のナノ秒レーザーフラッシュフォトリシスの測定を、波長355nmのナノ秒紫外レーザー(パルス幅:5ns、出力:4mJ)を用いて、25℃で行った。ナノ秒紫外レーザーを照射した直後の可視・近赤外吸収スペクトルの測定結果を図6に示す。
1,3-ビス(トリフェニルイミダゾール)-1,1,3,3-テトラメチルジシロキサンの合成
本発明のフォトクロミック化合物、1,3-ビス(トリフェニルイミダゾール)-1,1,3,3-テトラメチルジシロキサン(以下、「bisTPI-TMDS」ともいう)の前駆体である、1,3-ビスTPIH-1,1,3,3-テトラメチルジシロキサン(以下、「bisTPIH-TMDS」ともいう)を、2-(4-ブロモフェニル)-1,3-ジオキソランを原料として、以下の合成経路により合成を行った。
次に、内容積100mlのナスフラスコ中でジクロロジメチルシラン4.56g(0.035mmol)をTHF10mlで希釈し、そこに上記反応溶液Aをトランスファーチューブを用いて滴下し、室温で12時間攪拌した。この反応溶液を減圧留去し、未反応のジクロロジメチルシランおよびTHFを除いた後、ジエチルエーテル40mlを用いて可溶な成分を分取した。この溶液中にイオン交換水2mlを加え2時間攪拌し、更にイオン交換水を4ml加え30分攪拌した。攪拌後、ジエチルエーテル層を減圧留去することで無色透明のオイルを得た。
合成したbisTPI-TMDSのベンゼン溶液(濃度3.5×10-4mol/l)について、アルゴン雰囲気下、25℃における、波長360nm~830nmのフォトクロミック特性を測定した。波長360nmの紫外光を照射することで、溶液の色は瞬時に無色から赤紫色に発色するフォトクロミズムを示し、500nmから800nmにかけて新たな吸収帯が確認された。可視吸収スペクトルの測定結果を図9に示す。
[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドの合成
本発明の製造方法においてキー化合物となる前駆体化合物の[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを、以下の合成経路に従い合成した。
[2.2]パラシクロファン-4-ビス(パラ-メトキシフェニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-BMPIH-DPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-BMPIH-DPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-BMPI-DPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-BMPI-DPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:1.57×10-4mol/l)、アルゴン雰囲気下、25℃で測定を行った。
また図11には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図11の結果より、pseudogem-BMPI-DPI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンと同程度の半減期(~50ms)で減衰することを確認した。
[2.2]パラシクロファン-4-ビス(パラ-ヒドロキシフェニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-BHPIH-DPIH[2.2]パラシクロファン)の合成
本発明のフォトクロミック化合物pseudogem-BHPI-DPI[2.2]パラシクロファンの前駆体である、pseudogem-BHPIH-DPIH[2.2]パラシクロファンを、前記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドと、目的とする構造のベンジル誘導体であるジヒドロキシベンジルとを、酢酸中、酢酸アンモニウム存在下において加熱攪拌することで合成した。合成経路を以下に示す。
パラシクロファン-4-ビス(3,4-ジメトキシフェニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-DMIH-DPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-DMIH-DPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-DMI-DPI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-DMI-DPI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.1×10-5M)、25℃で測定を行った。
図14に、紫外-可視吸収スペクトルの測定結果を示す。図14の結果より、pseudogem-DMI-DPI[2.2]パラシクロファンは400nm以上の可視光領域にも吸収帯を有している。400nmにおけるモル吸光係数εは200であった。前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの400nmにおけるモル吸光係数εと比較するとメトキシ基の導入により可視光領域の吸収の増大が確認された。
上記の合成で得たpseudogem-DMI-DPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-DMI-DPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.1×10-4M)、アルゴン雰囲気下、25℃で測定を行った。
また図16には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図16の結果より、pseudogem-DMI-DPI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの半減期(33ms)と比較すると、同程度の半減期(56ms)で減衰することを確認した。
パラシクロファン-4,13-ビス(3,4-ジメトキシフェニル)イミダゾール(pseudogem-bisDMIH[2.2]パラシクロファン)の合成
[2.2]パラシクロファン-4,13-ジカルバルデヒドを用いて、以下の合成経路に従い、pseudogem-bisDMIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-bisDMI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-bisDMI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.1×10-5M)、25℃で測定を行った。
図17に、紫外-可視吸収スペクトルの測定結果を示す。図17の結果より、pseudogem-bisDMI[2.2]パラシクロファンは400nm以上の可視光領域にも吸収帯を有している。400nmにおけるモル吸光係数εは600であった。前述した片置換体(pseudogem-DMI-DPI[2.2]パラシクロファン)、無置換体(pseudogem-bisDPI[2.2]パラシクロファン)の400nmにおけるモル吸光係数εと比較すると可視光領域の吸収の増大が確認された。
上記の合成で得たpseudogem-bisDMI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-bisDMI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.1×10-4M)、アルゴン雰囲気下、25℃で測定を行った。
パラシクロファン-4-(3-フェニル-4-ピレニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-PYIH-DPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-PYIH-DPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-PYI-DPI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-PYI-DPI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.0×10-5M)、25℃で測定を行った。
上記の合成で得たpseudogem-PYI-DPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-PYI-DPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.0×10-5M)、アルゴン雰囲気下、25℃で測定を行った。
また図22には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図22の結果より、pseudogem-PYI-DPI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンよりも短い半減期(~15ms)で減衰することを確認した。
パラシクロファン-4-(3-フェニル-4-ピレニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-bisPYIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-bisPYIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-bisPYI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-bisPYI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.0×10-5M)、25℃で測定を行った。
上記の合成で得たpseudogem-bisPYI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-bisPYI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.0×10-5M)、アルゴン雰囲気下、25℃で測定を行った。
また図25には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図25の結果より、pseudogem-bisPYI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンよりも短い半減期(~20ms)で減衰することを確認した。
パラシクロファン-4,13-ビス(3-ジメトキシフェニル-4-クロロフェニル)イミダゾール(pseudogem-bisMCIH[2.2]パラシクロファン)の合成
[2.2]パラシクロファン-4,13-ジカルバルデヒドを用いて、以下の合成経路に従い、pseudogem-bisMCIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-bisMCI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-bisMCI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.1×10-5M)、25℃で測定を行った。
上記の合成で得たpseudogem-bisMCI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-bisMCI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.1×10-4M)、アルゴン雰囲気下、25℃で測定を行った。
図27に、実施例1と同じ条件の可視・近赤外吸収スペクトルの測定結果を示す。図27の結果より、pseudogem-bisMCI[2.2]パラシクロファンの紫外光照射による光着色体の吸収スペクトルは、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの吸収スペクトルと比較すると、長波長シフトし、スペクトル形状の変化が確認された。
また図28には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図28の結果より、pseudogem-bisMCI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの半減期よりも短い半減期(~10ms)で減衰することを確認した。
パラシクロファン-4-フェナントロイミダゾール-13-ジフェニルイミダゾール(pseudogem-PHIH-DPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-PHIH-DPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-PHI-DPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-PHI-DPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:10-4M)、アルゴン雰囲気下、25℃で測定を行った。
また図31には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図31の結果より、pseudogem-PHI-DPI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンよりも非常に短い半減期(~80μs)で減衰することを確認した。
パラシクロファン-4-(3-p-ジメチルアミノフェニル-4-フェニル)イミダゾール-13-ジフェニルイミダゾール(pseudogem-DAIH-DPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-DAIH-DPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たpseudogem-DAI-DPI[2.2]パラシクロファンの吸収スペクトルを、紫外-可視吸収スペクトル測定により確認した。pseudogem-DAI-DPI[2.2]パラシクロファンをベンゼンに溶解させ(濃度:2.1×10-5M)、25℃で測定を行った。
図32に、可視・近赤外吸収スペクトルの測定結果を示す。図32の結果より、pseudogem-DAI-DPI[2.2]パラシクロファンは400nm以上の可視光領域にも吸収帯を有している。400nmにおけるモル吸光係数εは14000であった。前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの400nmにおけるモル吸光係数ε(=0)と比較するとジメチルアミノ基の導入により可視光領域の吸収の増大が確認された。
上記の合成で得たpseudogem-DAI-DPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。pseudogem-DAI-DPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:2.1×10-5M)、アルゴン雰囲気下、25℃で測定を行った。
図33に、実施例1と同じ条件の可視・近赤外吸収スペクトルの測定結果を示す。図33の結果より、pseudogem-DAI-DPI[2.2]パラシクロファンの紫外光照射による光着色体の吸収スペクトルは、前述した無置換体であるpseudogem-bisDPI[2.2]パラシクロファンの吸収スペクトルと比較すると、スペクトル形状の変化が確認された。
アクリレート基を有するpseudogem-bisDPIH[2.2]パラシクロファン(Ac-pseudogem-bisDPIH[2.2]パラシクロファン)の合成
上記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、Ac-pseudogem-bisDPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たAc-pseudogem-bisDPI[2.2]パラシクロファンのフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。Ac-pseudogem-bisDPI[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:10-4M)、アルゴン雰囲気下、25℃で測定を行った。
また図36には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図36の結果より、Ac-pseudogem-bisDPI[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した類似化合物であるpseudogem-BMPI-DPI[2.2]パラシクロファンと同程度の半減期(~50ms)で減衰することを確認した。
ポリpseudogem-bisDPIH[2.2]パラシクロファンの合成
上記実施例13の合成で得たAc-pseudogem-bisDPI[2.2]パラシクロファンを用いて、以下の合成経路に従い、ポリpseudogem-bisDPIH[2.2]パラシクロファンを合成した。合成経路を以下に示す。
上記の合成で得たポリpseudogem-bisDPIH[2.2]パラシクロファンの溶液状態におけるフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。ポリpseudogem-bisDPIH[2.2]パラシクロファンを脱気したベンゼンに溶解させ(濃度:0.1mg/mL)、アルゴン雰囲気下、25℃で測定を行った。
また図38には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図38の結果より、ポリpseudogem-bisDPIH[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、前述した類似化合物であるAc-pseudogem-bisDPI[2.2]パラシクロファンと同程度の半減期(~50ms)で減衰することを確認した。
上記の合成で得たポリpseudogem-bisDPIH[2.2]パラシクロファンの薄膜状態におけるフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュフォトリシス測定により確認した。ポリpseudogem-bisDPIH[2.2]パラシクロファン5mgをクロロホルムに溶解させ(濃度:50mg/mL)、スピンコート法により石英板上に薄膜を作製し、25℃で測定を行った。
また図40には、実施例1と同じ条件の400nmの吸収帯の時間減衰の測定結果を示す。図40の結果より、ポリpseudogem-bisDPIH[2.2]パラシクロファンの400nmにおける吸光度の時間変化は、約1秒で完全に減衰することを確認した。
pseudogem-bisDPI[2.2]パラシクロファンの2量体の合成
前記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-bisDPIH[2.2]パラシクロファンの2量体を合成した。
pseudogem-bisDPI[2.2]パラシクロファンの2量体のフォトクロミック特性を、実施例1と同じ条件のナノ秒レーザーフラッシュホトリシス測定により確認した。pseudogem-bisDPI[2.2]パラシクロファンの2量体を脱気したベンゼン(濃度1.07×10-4mol/l)に溶解させ、アルゴン雰囲気下にした後に測定を行った。400nmにおける吸光度の時間変化は、図8に示すように単量体であるpseudogem-bisDPI[2.2]パラシクロファンと同程度の半減期(~40ms)で減衰することを確認した。また、光着色体の吸収スペクトルは、図9に示すようにpseudogem-bisDPI[2.2]パラシクロファンとほぼ同様である一方、モル濃度当りの吸光度はpseudogem-bisDPI[2.2]パラシクロファンと比較して約2倍増加することを確認した。
pseudogem-bisDPI[2.2]パラシクロファンの3量体の合成
前記実施例4の合成で得た[2.2]パラシクロファン-4-ジフェニルイミダゾール-13-カルバルデヒドを用いて、以下の合成経路に従い、pseudogem-bisDPIH[2.2]パラシクロファンの3量体を合成した。
pseudogem-bisDPI[2.2]パラシクロファンの3量体のフォトクロミック特性を、実施例1と同じ条件のレーザーフラッシュホトリシス測定により確認した。pseudogem-bisDPI[2.2]パラシクロファンの3量体を脱気したベンゼンに(濃度5.64×10-5mol/l)に溶解させ、アルゴン雰囲気下にした後に測定を行った。400nmにおける吸光度の時間変化は、図10に示すように単量体であるpseudogem-bisDPI[2.2]パラシクロファンと同程度の半減期(~60ms)で減衰することを確認した。また、図11に示すように光着色体の吸収スペクトルはpseudogem-bisDPI[2.2]パラシクロファンとほぼ同様である一方、そのモル濃度当りの吸光度変化はpseudogem-bisDPI[2.2]パラシクロファンと比較して約3倍増加することを確認した。
Claims (25)
- 下記一般式(1)
式中、AおよびBの2個のアリール基は、架橋基X(ただし、1,8-ナフタレニレンを除く)によって、互いに炭素原子が架橋されており、
lは1~5の整数であり、
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
RXは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、炭素数1~20の直鎖状または分枝状のアルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)からなる群より選ばれる1種または2種以上の置換基であり、
A~Dの4個のアリール基は、互いに独立して置換基RA~RDを有しないまたは有し、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
oおよびpは、それぞれ互いに独立して0~5の整数であり、
置換基RAおよびRBは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基、カルバゾール基、炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状の、アルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
置換基RCおよびRDは、互いに独立して同一または異なり、前記置換基RAおよびRBと同一の意味を有する置換基、下記部分構造式(i)
(ここで、Ri1は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri2は、水素または炭素数1~3のアルキル基を表す)で表される置換基、下記部分構造式(ii)
(ここで、Ri3は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri4は、炭素とケイ素数との合計が5~10である環状オレフィンを表し、xは、0または1を表す)で表される置換基、および下記部分構造式(iii)
(ここで、Ri5は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri6は、エチレン基、もしくはアセチレン基を表す)で表される置換基からなる群より選ばれる1種または2種以上の置換基であり、
さらに前記置換基RA~RDは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記置換基RCおよびRDと同一の意味を有する置換基を有しないまたは有する、で表される化合物。 - 架橋基がトリアリールイミダゾリルラジカル(TAIR)と共役しない架橋基である、請求項1に記載の化合物。
- mおよびnが0であり架橋基Xが非置換であるか、または置換基RA、RBおよびRXが、メチル基である、請求項1または2に記載の化合物。
- 下記一般式(2)
式中、AおよびBの2個のアリール基は、架橋基X(ただし、1,8-ナフタレニレンを除く)によって、互いに炭素原子が架橋されており、
lは1~5の整数であり、
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
RXは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、ならびに炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
A~Fの6個のアリール基は、互いに独立して置換基RA~RFを有しないまたは有し、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
o~rは、それぞれ互いに独立して0~5の整数であり、
置換基RAおよびRBは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、ならびに炭素数1~20の直鎖状または分枝状の、アルキル基、アルキルアミノ基およびアルコキシ基、ならびに-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基および-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、からなる群より選ばれる1種または2種以上の置換基であり、
置換基RC~RFは、互いに独立して同一または異なり、前記置換基RAおよびRBと同一の意味を有する置換基、下記部分構造式(i)
(ここで、Ri1は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri2は、水素または炭素数1~3のアルキル基を表す)で表される置換基、下記部分構造式(ii)
(ここで、Ri3は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri4は、炭素とケイ素数との合計が5~10である環状オレフィンを表し、xは、0または1を表す)で表される置換基、および下記部分構造式(iii)
(ここで、Ri5は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri6は、エチレン基、もしくはアセチレン基を表す)で表される置換基からなる群より選ばれる1種または2種以上の置換基であり、
前記置換基RA~RFは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記置換基RC~RFと同一の意味を有する置換基を有しないまたは有する、で表される化合物。 - 置換基RA~RFの少なくとも1つが、水素ではない、請求項5に記載の化合物。
- アリール基Aを含むトリアリールイミダゾール部位と、アリール基Bを含むトリアリールイミダゾール部位との構造が異なり非対称である、請求項5または6に記載の化合物。
- 架橋基が、トリアリールイミダゾリルラジカル(TAIR)と共役しない架橋基である、請求項5~7のいずれかに記載の化合物。
- 架橋基が、-CH2CH2-基、-CH2CH2CH2-基、-CH2CH2CH2CH2-基、-Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2Si(CH3)2-基、-SiH2OSiH2-基、-Si(CH3)2OSi(CH3)2-基、-Si(CH3CH2)2OSi(CH2CH3)2-基、-CH2SCH2-基、-CH2OCH2-基、-OCH2CH2O-基および-CH2OCH2CH2OCH2-基からなる群より選ばれる1種または2種以上の架橋基である、請求項5~8のいずれかに記載の化合物。
- mおよびnが0であり架橋基Xが非置換であるか、または置換基RA、RBおよび置換基RXが、メチル基である、請求項5~8のいずれかに記載の化合物。
- 下記一般式(3)
式中、AおよびBの2個のアリール基は、架橋基X(ただし、1,8-ナフタレニレンを除く)によって、互いに炭素原子が架橋されており、
lは1~5の整数であり
該架橋基X中に水素原子が存在する場合、該水素原子は、互いに独立して1または2以上の置換基RXによって置換されていてもよく、
αは1~9の整数であり、
連結基Lは、1つの環構造当たり炭素原子5~8個の芳香環1~12個からなる単環または多環芳香族化合物であり、
ビスイミダゾール骨格を含む構造単位中の5個のアリール基は、互いに独立して置換基RAおよびRBならびにRC~REを有しないまたは有し、
置換基RAおよびRB、RC~REならびにRXのすべては、互いに独立して同一または異なり、それぞれ請求項5に記載の一般式(2)における置換基RAおよびRB、RC~REならびにRXと同一の意味を有し、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
o~rは、それぞれ互いに独立して0~5の整数であり、
前記置換基RAおよびRBならびにRC~REは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上および前記連結基Lの芳香環上に、さらに置換基RLを有しないまたは有する、
で表される化合物。 - 請求項12に記載の一般式(3)が、下記一般式(3c)
式中、16個のアリール基は、置換基RAおよびRBならびにRC~RFを有しないまたは有し、該アリール基の有する置換基RAおよびRBならびにRC~RFのすべては、互いに独立して同一または異なり、それぞれ請求項5に記載の一般式(2)における置換基RAおよびRBならびにRC~RFと同一の意味を有し、
Xおよびlは請求項5に記載の一般式(2)におけるXおよびlと同一の意味を有し、
mおよびnは、それぞれ互いに独立して0~4の整数であり、
o~qは、それぞれ互いに独立して0~5の整数であり、
rは0~3の整数である、
で表される、請求項12に記載の化合物。 - 架橋基が、トリアリールイミダゾリルラジカル(TAIR)と共役しない架橋基である、請求項12~14のいずれかに記載の化合物。
- 架橋基が、-CH2CH2-基、-CH2CH2CH2-基、-CH2CH2CH2CH2-基、-Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2-基、-Si(CH3)2Si(CH3)2Si(CH3)2Si(CH3)2-基、-SiH2OSiH2-基、-Si(CH3)2OSi(CH3)2-基、-Si(CH3CH2)2OSi(CH2CH3)2-基、-CH2SCH2-基、-CH2OCH2-基、-OCH2CH2O-基および-CH2OCH2CH2OCH2-基からなる群より選ばれる1種または2種以上の架橋基である、請求項12~15のいずれかに記載の化合物。
- mおよびnが0であり架橋基Xが非置換であるか、または置換基RA、RBおよびRXが、メチル基である、請求項12~15のいずれかに記載の化合物。
- 請求項5~19のいずれかに記載の化合物および/または高分子化合物を含有するフォトクロミック材料。
- 請求項5~19のいずれかに記載の化合物および/または高分子化合物を含有する溶媒。
- 請求項5~19のいずれかに記載の化合物および/または高分子化合物を含有する樹脂。
- フォトクロミック性を有する材料組成物であって、請求項5~22のいずれかに記載の化合物、高分子化合物、フォトクロミック材料、溶媒および樹脂からなる群より選ばれる1種または2種以上を含有する、調光材料、ホログラム材料、インク材料、光情報表示デバイス、光スイッチ素子およびフォトレジスト材料からなる群から選択される、前記材料組成物。
- 請求項5~11のいずれかに記載の化合物の製造方法であって、請求項1~4のいずれかに記載の化合物と、下記一般式(4)
式中、2個のアリール基は、互いに独立して置換基REおよびRFを有しないまたは有し、
該置換基REおよびRFは、互いに独立して同一または異なり、ハロゲン原子、ニトロ基、シアノ基、トリフルオロメチル基、ヒドロキシル基、チオール基、アミノ基、ジフェニルアミノ基およびカルバゾール基、炭素数1~20の直鎖状または分枝状のアルキル基、アルキルアミノ基、アルコキシ基、-Y1-SiZ1Z2Z3基、-Y1-SiY2Z1Z2基、-Y1-SiY2Y3Z1基(ここで、Y1~Y3は、それぞれ互いに独立して同一または異なり、炭素数1~20の直鎖状または分枝状のアルキル基またはアルキレン基を表し、Z1~Z3は、それぞれ互いに独立して同一または異なり、水素原子、ハロゲン原子または炭素数1~8の直鎖状もしくは分枝状のアルコキシ基を表す)、下記部分構造式(i)
(ここで、Ri1は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri2は、水素または炭素数1~3のアルキル基を表す)で表される置換基、下記部分構造式(ii)
(ここで、Ri3は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri4は、炭素数とケイ素数との合計が5~10である環状オレフィンを表し、xは、0または1を表す)で表される置換基、ならびに下記部分構造式(iii)
(ここで、Ri5は、炭素数1~20のアルキレン基またはアルコキシレン基を表し、Ri6は、エチレン基、もしくはアセチレン基を表す)で表される置換基からなる群より選ばれる1種または2種以上の置換基であり、
qおよびrは、互いに独立して0~5の整数であり、
前記アリール基が有する置換基は、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上にさらに前記アリール基の有する置換基と同一の意味を有する置換基を有しないまたは有する、
で表される化合物とを反応させる、前記製造方法。 - 請求項12~18のいずれかに記載の化合物の製造方法であって、請求項1~4のいずれかに記載の化合物と、下記一般式(5)
式中、βは1~9の整数であり、
連結基Mは、1つの環構造当たり炭素原子5~8個の芳香族環1~12個からなる単環または多環芳香族化合物であり、
1,2-ジケトン骨格を含む構造単位中のアリール基は、置換基REを有しないまたは有し、
該アリール基の有する置換基のすべては、互いに独立して同一または異なり、請求項24に記載の一般式(4)のREと同じ意味を有し、
qは1~5の整数であり、
前記置換基REは、結合している炭素原子および他の置換基と一体となって脂肪族環または芳香環を形成しないまたは形成し、該環上および前記連結基Mの芳香環上に、さらに置換基RMを有しないまたは有する、
で表される化合物とを反応させる、前記製造方法。
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- 2009-11-24 AU AU2009321034A patent/AU2009321034A1/en not_active Abandoned
- 2009-11-24 JP JP2010519685A patent/JP4643761B2/ja not_active Expired - Fee Related
- 2009-11-24 WO PCT/JP2009/006326 patent/WO2010061579A1/ja not_active Ceased
- 2009-11-24 CN CN2009801459572A patent/CN102216278A/zh active Pending
- 2009-11-24 KR KR1020117014594A patent/KR20110095917A/ko not_active Withdrawn
- 2009-11-24 US US13/131,863 patent/US20110306743A1/en not_active Abandoned
- 2009-11-25 TW TW098140131A patent/TW201029976A/zh unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2010061579A1 (ja) | 2012-04-26 |
| TW201029976A (en) | 2010-08-16 |
| CN102216278A (zh) | 2011-10-12 |
| JP4643761B2 (ja) | 2011-03-02 |
| US20110306743A1 (en) | 2011-12-15 |
| EP2397468A1 (en) | 2011-12-21 |
| KR20110095917A (ko) | 2011-08-25 |
| AU2009321034A1 (en) | 2011-07-14 |
| EP2397468A4 (en) | 2012-08-15 |
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