[go: up one dir, main page]

USRE29210E - Synthesis of chalcogenated polyacenes - Google Patents

Synthesis of chalcogenated polyacenes Download PDF

Info

Publication number
USRE29210E
USRE29210E US05/662,382 US66238276A USRE29210E US RE29210 E USRE29210 E US RE29210E US 66238276 A US66238276 A US 66238276A US RE29210 E USRE29210 E US RE29210E
Authority
US
United States
Prior art keywords
sulfur
group
selenium
tellurium
elemental
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/662,382
Inventor
Evelio A. Perez-Albuerne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US05/662,382 priority Critical patent/USRE29210E/en
Application granted granted Critical
Publication of USRE29210E publication Critical patent/USRE29210E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
    • C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D495/06—Peri-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D327/00—Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms

Definitions

  • the present invention relates to novel methods for preparing chalcogen-substituted polyacenes and particularly to methods for preparing tetracene and pentacene compounds in which sulfur .[., selenium, or tellurium.]. atoms are attached to interior reactive carbon atoms of the polyacene nucleus to form heterocyclic rings with the nucleus.
  • Tetrathiotetracene for example, which has the formula: ##STR1## is reported by Matsunaga in J. Chem. Phys., 42, 2248 (1965) as possessing a specific resistance of 104 ⁇ at 15° C when in molded form. Accordingly, such compounds are useful as organic semiconductors at room temperature. Additionally, these compounds have utility in that they readily form ion-radical salts which are themselves organic semiconductors having even lower electrical resistivity. Matsunaga U.S. Pat. No. 3,403,165 discloses such tetrathiotetracene ion-radical salts and their semiconductive properties.
  • Synthesis of substituted polyacenes has been carried out in the past by reacting a polyacene with an elemental chalcogen such as sulfur, selenium, and tellurium in the presence of hot solvent such as trichlorobenzene or Dowtherm, a eutectic of biphenyl and biphenyl oxide sold by the Dow Chemical Company.
  • a polyacene with an elemental chalcogen such as sulfur, selenium, and tellurium
  • hot solvent such as trichlorobenzene or Dowtherm
  • tetrathiotetracene is ordinarily synthesized by reacting tetracene with elemental sulfur in hot trichlorobenzene. Synthesis carried out by this method produces considerable amounts of undesirable by-products and requires a reaction time of from 20 to 24 hours.
  • chalcogen-substituted polyacene compounds involves the reaction of a halogenated polyacene with an elemental chalcogen in the presence of trichlorobenzene.
  • Tetrathiotetracene can be prepared according to this method by reacting elemental sulfur with 5,11-dichlorotetracene in trichlorobenzene. This method requires the additional step of halogenating the tetracene.
  • Still another method for producing tetrathiotetracene involves heating sulfur monochloride and tetracene in trichlorobenzene.
  • Sulfur monochloride is a very powerful reagent which must be freshly distilled before use.
  • the reaction is carried out in a current of carbon dioxide and tends to produce significant amounts of undesirable by-products.
  • the present invention is directed to overcoming the deficiencies of the prior art by providing methods for producing chalcogen-substituted polyacenes which require relatively short reaction times while practically eliminating substantial amounts of undesirable by-products. Additionally, the present invention requires no prior synthesis of halogenated reactant or use of a strong oxidizing agent. Further, the present invention produces high yields of relatively pure products which can ordinarily be utilized without further purification.
  • Preferred alkylated amides useful in carrying out the method of the present invention include N,N-dimethylformamide, N,N-diethylformamide, N,N-dimethylacetamide, and N,N,N',N'-tetramethylurea.
  • N,N'-dimethylformamide is the solvent most preferred when carrying out the method of the present invention.
  • Tetracene (20 g.) and flowers of sulfur (40 g.) are placed in a flask containing 500 ml. of N,N-dimethylformamide.
  • the reaction mixture is heated to boiling, and boiling is continued for about 31/2 hours. Small additions of N,N-dimethylformamide are made at intervals to replace the solvent lost by evaporation.
  • the insoluble dark green product is separated by filtering while still hot and is finally washed with benzene and ligroine. After drying under ambient conditions, a yield of 29.3 g. (94.8 percent) of tetrathiotetracene is obtained.
  • Tetracene (0.7 g.) and flowers of sulfur (1.4 g.) are placed in a flask containing 30 ml. of N,N,N',N'-tetramethylurea and provided with a reflux condenser. The mixture is heated to boiling, and refluxed for about 3 hours. The insoluble product is then filtered and washed with benzene and ligroine. After drying, a yield of 0.96 g. (89 percent) of tetrathiotetracene is obtained.
  • Example 2 A procedure identical to that of Example 2 is used with the exception that 1 g. of tetracene, 2 g. of flowers of sulfur, and 50 ml. of N,N-dimethylacetamide are used as reagents. The yield of tetrathiotetracene is 1.2 g. (78 percent).
  • a reaction is carried out as described in Example 3 with the exception that N,N-diethylformamide is used as solvent, the reaction time is 21/4 hours, and the product is recovered after the reaction medium is cooled to room temperature.
  • the yield of tetrathiotetracene is 0.93 g. (60 percent).
  • Pentacene (1 g.) and flowers of sulfur (2 g.) are placed in a flask containing 40 ml. of N,N-dimethylformamide and provided with an air-cooled reflux condenser. The mixture is heated to boiling, under a blanket of nitrogen gas, and refluxed in the dark for about 31/2 hours. The insoluble product is then filtered hot and washed with benzene and ligroine. After drying in air, a yield of 1.15 g. (68.5 percent) of blue-green hexathiopentacene is obtained.
  • a reaction can be carried out as described in Example 2 with the exception that 3.5 g. of selenium are used instead of flowers of sulfur to yield tetraselenotetracene..].

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

Chalcogenated polyacenes including organic semiconductors such as tetrathiotetracene, .[.tetraselenotetracene.]., and hexathiopentacene are produced by reaction of a polyacene with elemental sulfur, .[.selenium, and tellurium.]. in the presence of nitrogen-containing hot solvents, preferably alkylated amides. N,N-dimethylformamide is the preferred solvent. The disclosed method of synthesis produces substituted polyacenes of high yield and purity in considerably shorter reaction times than achievable by prior art methods.

Description

The present invention relates to novel methods for preparing chalcogen-substituted polyacenes and particularly to methods for preparing tetracene and pentacene compounds in which sulfur .[., selenium, or tellurium.]. atoms are attached to interior reactive carbon atoms of the polyacene nucleus to form heterocyclic rings with the nucleus.
Certain polyacenes, notably tetrathiotetracene, .[.tetraselenotetracene,.]. and hexathiopentacene are known to have low electrical resistivity. Tetrathiotetracene, for example, which has the formula: ##STR1## is reported by Matsunaga in J. Chem. Phys., 42, 2248 (1965) as possessing a specific resistance of 104Ω at 15° C when in molded form. Accordingly, such compounds are useful as organic semiconductors at room temperature. Additionally, these compounds have utility in that they readily form ion-radical salts which are themselves organic semiconductors having even lower electrical resistivity. Matsunaga U.S. Pat. No. 3,403,165 discloses such tetrathiotetracene ion-radical salts and their semiconductive properties.
Synthesis of substituted polyacenes has been carried out in the past by reacting a polyacene with an elemental chalcogen such as sulfur, selenium, and tellurium in the presence of hot solvent such as trichlorobenzene or Dowtherm, a eutectic of biphenyl and biphenyl oxide sold by the Dow Chemical Company. For example, tetrathiotetracene is ordinarily synthesized by reacting tetracene with elemental sulfur in hot trichlorobenzene. Synthesis carried out by this method produces considerable amounts of undesirable by-products and requires a reaction time of from 20 to 24 hours.
Another method for producing chalcogen-substituted polyacene compounds involves the reaction of a halogenated polyacene with an elemental chalcogen in the presence of trichlorobenzene. Tetrathiotetracene can be prepared according to this method by reacting elemental sulfur with 5,11-dichlorotetracene in trichlorobenzene. This method requires the additional step of halogenating the tetracene.
Still another method for producing tetrathiotetracene involves heating sulfur monochloride and tetracene in trichlorobenzene. Sulfur monochloride is a very powerful reagent which must be freshly distilled before use. In addition, the reaction is carried out in a current of carbon dioxide and tends to produce significant amounts of undesirable by-products.
Accordingly, the present invention is directed to overcoming the deficiencies of the prior art by providing methods for producing chalcogen-substituted polyacenes which require relatively short reaction times while practically eliminating substantial amounts of undesirable by-products. Additionally, the present invention requires no prior synthesis of halogenated reactant or use of a strong oxidizing agent. Further, the present invention produces high yields of relatively pure products which can ordinarily be utilized without further purification.
It has been discovered that the shortcomings of the prior art methods for producing chalcogen-substituted polyacenes, particularly those having the general formulas: ##STR2## and ##STR3## wherein X and Y each represent .[.identical atoms selected from the group consisting of.]. sulfur .[., selenium, and tellurium,.]. can be overcome by reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur .[.selenium,.]. and tellurium with a polyacene such as tetracene or pentacene in the presence of a reaction solvent comprising a nitrogen-containing organic solvent, preferably an alkylated amide maintained at high temperatures, usually at about reflux temperatures. Preferred alkylated amides useful in carrying out the method of the present invention include N,N-dimethylformamide, N,N-diethylformamide, N,N-dimethylacetamide, and N,N,N',N'-tetramethylurea. N,N'-dimethylformamide is the solvent most preferred when carrying out the method of the present invention.
Effectiveness of the novel methods of synthesis provided by the present invention is demonstrated by the following examples.
EXAMPLE 1
Tetracene (20 g.) and flowers of sulfur (40 g.) are placed in a flask containing 500 ml. of N,N-dimethylformamide. The reaction mixture is heated to boiling, and boiling is continued for about 31/2 hours. Small additions of N,N-dimethylformamide are made at intervals to replace the solvent lost by evaporation. After the reaction is completed the insoluble dark green product is separated by filtering while still hot and is finally washed with benzene and ligroine. After drying under ambient conditions, a yield of 29.3 g. (94.8 percent) of tetrathiotetracene is obtained. Comparison of the infrared spectrum of this product with that of purified authentic samples of tetrathiotetracene reveals the presence of only minor impurities. The product, as prepared above, is then successfully utilized without further purification to prepare ion-radical derivatives of tetrathiotetracene as described by Matsunaga in U.S. Pat. No. 3,403,165.
Elemental analysis of a typical sample of tetrathiotetracene prepared by the method of Example 1 is as follows:
Theory (percent): C, 61.4; H, 2.3; S, 36.4; Cl, 0; N, .0
Found (percent): C, 61.1; H, 2.5; S, 36.4; Cl, <.1; N, <.1
EXAMPLE 2
Tetracene (0.7 g.) and flowers of sulfur (1.4 g.) are placed in a flask containing 30 ml. of N,N,N',N'-tetramethylurea and provided with a reflux condenser. The mixture is heated to boiling, and refluxed for about 3 hours. The insoluble product is then filtered and washed with benzene and ligroine. After drying, a yield of 0.96 g. (89 percent) of tetrathiotetracene is obtained.
EXAMPLE 3
A procedure identical to that of Example 2 is used with the exception that 1 g. of tetracene, 2 g. of flowers of sulfur, and 50 ml. of N,N-dimethylacetamide are used as reagents. The yield of tetrathiotetracene is 1.2 g. (78 percent).
EXAMPLE 4
A reaction is carried out as described in Example 3 with the exception that N,N-diethylformamide is used as solvent, the reaction time is 21/4 hours, and the product is recovered after the reaction medium is cooled to room temperature. The yield of tetrathiotetracene is 0.93 g. (60 percent).
EXAMPLE 5
Pentacene (1 g.) and flowers of sulfur (2 g.) are placed in a flask containing 40 ml. of N,N-dimethylformamide and provided with an air-cooled reflux condenser. The mixture is heated to boiling, under a blanket of nitrogen gas, and refluxed in the dark for about 31/2 hours. The insoluble product is then filtered hot and washed with benzene and ligroine. After drying in air, a yield of 1.15 g. (68.5 percent) of blue-green hexathiopentacene is obtained.
.[.EXAMPLE 6
A reaction can be carried out as described in Example 2 with the exception that 3.5 g. of selenium are used instead of flowers of sulfur to yield tetraselenotetracene..].
The invention has been described in detail with particular reference to certain preferred embodiments thereof, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.

Claims (8)

I claim:
1. In a method for preparing a compound having the formula: ##STR4## or ##STR5## wherein X and Y each represent identical atoms selected from the group consisting of sulfur.[., selenium, and tellurium,.]. by a reaction of elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. and a polyacene selected from the group consisting of tetracene and pentacene in the presence of a hot solvent, the improvement which comprises employing an alkylated amide as said solvent.
2. A method for preparing a compound having the formula: ##STR6## or ##STR7## wherein X and Y each represent identical .[.atoms selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. which comprises reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. with a polyacene selected from the group consisting of tetracene and pentacene in the presence of a reaction solvent comprising an alkylated amide maintained at about reflux temperatures.
3. A method for preparing a compound having the formula: ##STR8## wherein X represents identical atoms .[.selected from the group consisting of.]. sulfur .[., selenium, and tellurium.]. which comprises reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. with tetracene in the presence of a reaction solvent comprising an alkylated amide maintained at about reflux temperatures.
4. A method for preparing a compound having the formula: ##STR9## wherein X represents identical atoms .[.selected from the group consisting.]. of sulfur.[., selenium, and tellurium.]. which comprises reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. with tetracene in the presence of a reaction solvent comprising an alkylated amide maintained at about reflux temperatures, said alkylated amide selected from the group consisting of N,N-dimethylformamide, N,N-diethylformamide, N,N-dimethylacetamide, and N,N,N',N'-tetramethylurea.
5. The method according to claim 4 wherein said alkylated amide is N,N-dimethylformamide. .[.6. The method according to claim 4 wherein the elemental chalcogen is selected from the group consisting of sulfur and selenium, and the alkylated amide is N,N-dimethylformamide..]. .[.7. The method according to claim 6 wherein the elemental chalcogen is sulfur and the alkylated amide is N,N-dimethylformamide..]. .[.8. The method according to claim 6 wherein the elemental chalcogen is selenium and the
alkylated amide is N,N-dimethylformamide..]. 9. A method for preparing a compound having the formula: ##STR10## wherein Y represents identical atoms .[.selected from the group consisting.]. of sulfur.[., selenium, and tellurium,.]. which comprises reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. with pentacene in the presence of a reaction solvent comprising an alkylated amide maintained at about
reflux temperatures. 10. A method for preparing a compound having the formula: ##STR11## wherein Y represents identical atoms .[.selected from the group consisting.]. of sulfur.[., selenium, and tellurium.]. which comprises reacting an elemental .[.chalcogen selected from the group consisting of.]. sulfur.[., selenium, and tellurium.]. with pentacene in the presence of a reaction solvent comprising an alkylated amide maintained at about reflux temperatures, said alkylated amide selected from the group consisting of N,N-dimethylformamide, N,N-diethylformamide,
N,N-dimethylacetamide, and N,N,N',N'-tetramethylurea. 11. The method according to claim 10 wherein said alkylated amide is N,N-dimethylformamide. .[.12. The method according to claim 10 wherein the elemental chalcogen is sulfur and the alkylated amide is N,N-dimethylformamide..].
US05/662,382 1971-06-01 1976-03-01 Synthesis of chalcogenated polyacenes Expired - Lifetime USRE29210E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/662,382 USRE29210E (en) 1971-06-01 1976-03-01 Synthesis of chalcogenated polyacenes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14905671A 1971-06-01 1971-06-01
US05/662,382 USRE29210E (en) 1971-06-01 1976-03-01 Synthesis of chalcogenated polyacenes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US14905671A Reissue 1971-06-01 1971-06-01

Publications (1)

Publication Number Publication Date
USRE29210E true USRE29210E (en) 1977-05-10

Family

ID=22528614

Family Applications (2)

Application Number Title Priority Date Filing Date
US00149056A Expired - Lifetime US3723417A (en) 1971-06-01 1971-06-01 Synthesis of chalcogenated polyacenes
US05/662,382 Expired - Lifetime USRE29210E (en) 1971-06-01 1976-03-01 Synthesis of chalcogenated polyacenes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US00149056A Expired - Lifetime US3723417A (en) 1971-06-01 1971-06-01 Synthesis of chalcogenated polyacenes

Country Status (4)

Country Link
US (2) US3723417A (en)
BE (1) BE783733A (en)
FR (1) FR2141080A5 (en)
GB (1) GB1377701A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923753A (en) * 1973-01-14 1975-12-02 Standard Oil Co 1,4-Dihydronaphthalene derivatives
CH591473A5 (en) * 1974-08-09 1977-09-15 Ciba Geigy Ag
US4046950A (en) 1976-03-18 1977-09-06 Eastman Kodak Company Chalcogenated tetracene organic metals
US4754028A (en) * 1984-09-24 1988-06-28 The Dow Chemical Company 3,4,5-triselena-tricyclo-[5.2.1.0.2,6 ]decanes and derivatives thereof
US4861859A (en) * 1988-03-28 1989-08-29 The United States Of America As Represented By The Secretary Of The Navy Conductive polymers of transition-metal complexes coordinated by a diamino-dichalcogen-benzene compound
JP6263118B2 (en) * 2012-06-12 2018-01-17 株式会社ダイセル Solvent or solvent composition for organic transistor production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
chemical Abstracts, vol. 44, cols. 3399-3401 (1950), abstracting Marschalk et al., "Bull. Soc. Chim France," (1948), pp. 418-428. *

Also Published As

Publication number Publication date
BE783733A (en) 1972-09-18
GB1377701A (en) 1974-12-18
US3723417A (en) 1973-03-27
FR2141080A5 (en) 1973-01-19

Similar Documents

Publication Publication Date Title
Simmons et al. Thiacyanocarbons. I. Tetracyano-1, 4-dithiin, Tetracyanothiophene and Tricyano-1, 4-dithiino [c] isothiazole
US4500459A (en) Tetracyanoanthraquinodimethane compounds
US4578220A (en) Charge transfer complexes of tetrathio/seleno-fulvalene derivatives and biscyanimine derivatives; biscyanimine derivatives and method for producing same
USRE29210E (en) Synthesis of chalcogenated polyacenes
SA91110352B1 (en) An improved process for the preparation of substituted endolone derivatives
US4478753A (en) Process for the production of 11,11,12,12-tetracyano-9,10-anthraquinodimehane _or its derivatives
Barluenga et al. C-Alkylation and N-acylation of 4-amino-1-azabutadiene derivatives. A convenient route to monoalkylated 1, 3-diketones
EP0061264B1 (en) Tetracyanoanthraquinodimethane compounds and processes for the production thereof, polymers and charge-transfer complexes derived therefrom
DE69119961T2 (en) Process for the reduction of acridine containing carbonyl
US4243601A (en) Cyano substituted diphenoquinones and a process for preparing them
US5062990A (en) Discotic octasubstituted tetrapyrazinotetraazaporphyrazines
Tamborski et al. Reactions of 1, 2-bis (trifluoroacetyl) benzene with nucleophiles leading to heterocyclic compounds
JPS5988486A (en) Manufacture of 3,4,9,10-tetrathioperylene and 3,4,9,10- tetraselenoperylene
JPH06100566A (en) Octakis@(3754/24)alkoxyphenyl)tetrapyrazinoporphyradine compounds and composition containing the same and capable of forming discotic liquid crystal phase
Kumar et al. An efficient approach to the synthesis of 4H-1-benzothiopyran-4-ones via intramolecular Wittig reaction
RU2111960C1 (en) Method of synthesis of 1-amino-1-cyanamido-2,2-dicyanethylene sodium salt
JPS60188393A (en) Novel ferrocene compound and its preparation
CA1105469A (en) Derivatives of m-diethylaminophenol useful as intermediates for dyes
US4929730A (en) Bis(1,2,5)thiadiazolo(3,4-b:3&#39;,4&#39;-E) pyrazine, a process for the preparation thereof and a method of using same
US3769276A (en) Selenium and tellurim compounds of halogenated arenes and preparation
US3347941A (en) Triphenyl methane free radicals and their preparation
JPS63185976A (en) Method for producing thiophenes from alpha-methylene ketone by one stage reaction and novel orthocondensed thiophene produced using said method
Lalezari et al. Selenium heterocycles XXIII. Synthesis of 4, 5‐dihydrophenanthro [1, 3‐d]‐1, 2, 3‐selenadiazoles and 10, 11‐dihydrophenanthro [1, 2‐d]‐1, 2, 3‐selenadiazoles
JPS5936638B2 (en) Method for producing bisdithiolium salts
US3471496A (en) Process for preparing tetrabromopyrazine