WO2001046169A1 - Procede de production de composes carbonyles par deshydrogenation d'alcools - Google Patents
Procede de production de composes carbonyles par deshydrogenation d'alcools Download PDFInfo
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- WO2001046169A1 WO2001046169A1 PCT/JP2000/008926 JP0008926W WO0146169A1 WO 2001046169 A1 WO2001046169 A1 WO 2001046169A1 JP 0008926 W JP0008926 W JP 0008926W WO 0146169 A1 WO0146169 A1 WO 0146169A1
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- Prior art keywords
- phosphine
- catalyst
- ruthenium
- butanediol
- alcohol
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
- C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B41/00—Formation or introduction of functional groups containing oxygen
- C07B41/06—Formation or introduction of functional groups containing oxygen of carbonyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/002—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by dehydrogenation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
Definitions
- the present invention relates to a method for producing a carbonyl compound by dehydrogenating an alcohol. More specifically, the present invention relates to a method for producing a carbonyl compound by dehydrogenating an alcohol in the presence of a complex catalyst containing ruthenium and a specific organic phosphine.
- a preferred example to which the method of the present invention can be applied is the production of gamma petit lactone from 1,4-butanediol. Background art
- a reaction that requires a large amount of a hydrogen acceptor is extremely disadvantageous for industrial implementation, and the hydrogen acceptor is converted to another compound by the dehydrogenation of alcohol, so that it cannot be reused. This is not a practical method.
- Japanese Patent Publication No. Hei 4-179954 describes that a copper-chromium-manganese catalyst or a copper-chromium-zinc catalyst is used. It describes a method for producing gamma butyrolactone by dehydrogenating 1,4-butanediol in the gas phase using a catalyst containing, chromium and barium.
- selectivity and catalyst deterioration are described.
- the gas phase method has not been able to overcome the equilibrium restriction due to the reverse reaction, and has not been able to completely solve the problems of selectivity and catalyst degradation. Not in.
- An object of the present invention is to produce a carbonyl compound by dehydrogenating an alcohol, and to provide a method for industrially and advantageously producing a carbonyl compound with high selectivity and high yield under mild reaction conditions. To provide.
- Another object of the present invention is to produce 1,4-butanediol by dehydrogenation and cyclization to produce gamma butyrolactone under mild reaction conditions with good selectivity, high yield, and industrially advantageous use.
- the present inventors have conducted intensive studies to solve the above problems, and as a result, have found that ruthenium and an organic phosphine in which an aliphatic carbon is bonded to at least two of the three bonds of a phosphorus atom.
- the above-mentioned complex catalyst can be a suitable catalyst for producing gamma-butyrolactone from 1,4-butanediol.
- the present invention has been completed based on the above findings.
- the gist of the present invention is to dehydrate alcohol in the presence of a complex catalyst containing ruthenium and an organic phosphine in which at least two of the three bonds of a phosphorus atom are bonded to an aliphatic carbon.
- a method for producing a carbonyl compound is to dehydrate alcohol in the presence of a complex catalyst containing ruthenium and an organic phosphine in which at least two of the three bonds of a phosphorus atom are bonded to an aliphatic carbon.
- Another gist of the present invention is that in the presence of a complex catalyst containing ruthenium and an organic phosphine in which two or more of the three bonds of a phosphorus atom are bonded to an aliphatic carbon, Gamma butyrolactone, which comprises dehydrogenating 1,4-butanediol.
- the catalyst used in the present invention is a complex catalyst containing ruthenium and an organic phosphine in which two or more bonds of a phosphorus atom are bonded to an aliphatic carbon.
- the catalyst may be prepared in advance and used for the reaction, or each component constituting the catalyst may be present in the reaction system to generate the catalyst in the reaction system.
- the supply form of the ruthenium metal is not particularly limited, and may be metal ruthenium or a ruthenium compound.
- the ruthenium compound include oxides, hydroxides, inorganic acid salts, organic acid salts, and complex compounds. Specific examples include ruthenium dioxide, ruthenium tetroxide, ruthenium hydroxide, and ruthenium chloride.
- the organic phosphine used in the present invention is an organic phosphine in which aliphatic carbon is bonded to two or more of the three bonds of a phosphorus atom.
- the organic phosphine is, for example, a trialkylphosphine in which an alkyl group is bonded to all three bonds of a phosphorus atom, an alkyl group is bonded to two of the three bonds of a phosphorus atom, and the remaining one is And dialkylarylphosphine having an aryl group bonded thereto.
- the organic phosphine may have one or more phosphorus atoms in one molecule, and may be monodentate or polydentate with ruthenium.
- the alkyl group is a saturated or unsaturated, linear or branched chain having 1 to 30 carbon atoms, preferably 1 to 20 carbon atoms, more preferably 1 to 10 carbon atoms, which may be substituted. Or cyclic aliphatic hydrocarbons.
- the substituent of the alkyl group is not particularly limited, and examples thereof include aromatic hydrocarbons such as a phenyl group and a tolyl group.
- alkyl group examples include methyl, ethyl, normal propyl, isopropyl, normal butyl, isobutyl, normal pentyl, normal hexyl, 2-methyl pentyl, 2-ethyl pentyl, cyclohexyl, normal heptyl, Normalocyl, normalnonyl, normaldecanyl, benzyl and the like can be mentioned.
- the aryl group is an optionally substituted aromatic hydrocarbon having 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms.
- substituent of the aromatic hydrocarbon include: an alkyl group such as methyl, ethyl, normal propyl, isopropyl, normal butyl, and isobutyl; an alkoxy group such as methoxy and ethoxy; a halogen atom such as chlorine and bromine; A sulfone group and the like.
- aryl groups include phenyl, o—, m—, p—tolyl, o—, m—, p—methoxyphenyl, n—, sec—, tert—butynole, o—, m—, p-Chronolefenezole, naphthyl and the like.
- two or more alkyl groups may be bonded to form an alkylene group.
- the functional groups bonded to the phosphorus atom may be the same or different from each other, or any two or three functional groups may form a ring structure.
- the carbon bonded to the phosphorus atom may be primary or secondary, but is preferably primary.
- Examples of the above-mentioned trialkylphosphine having an alkyl group include tri-normal decanyl phosphine, tri-normal nonyl phosphine, tri-normal octyl phosphine, tri-normal heptyl phosphine, tri-normal hexyl phosphine, tricyclohexyl phosphine, tri-normal pentyl phosphine, and tri-normal pentyl phosphine.
- tri-normal decanyl phosphine tri-normal nonyl phosphine, tri-normal octyl phosphine, tri-normal heptyl phosphine, tri-normal hexyl phosphine, tri-normal pentyl phosphine, Trinormal butyl phosphine, tri normal propyl phosphine, triethyl phosphine, trimethyl phosphine, dimethyl normal octyl phosphine, di normal octyl methyl phosphine, dimethyl normal heptyl phosphine, di normal heptyl methyl phosphine, dimethyl normal Trialkyl phosphine having one phosphorus atom in one molecule, such as xyl phosphine and dinormal hexyl methyl phosphine, is preferred.
- dialkylaryl phosphine examples include dimethylphenyl phosphine, getyl phenyl phosphine, dinormal propyl phenyl phosphine, diisopropyl phenyl phosphine, and di normal hexyl phenyl phosphine.
- Monophosphine such as di-n-octyl phenyl phosphine, dimethyl tri-phosphine, getyl tri-phosphine, di-normal propyl tri-phosphine, di-isopropyl tolyl phosphine, di-normal hexyl tolyl phosphine, di-normal octyl tolyl phosphine;
- Examples include polyphosphines such as enylphosphinoethane, ethylphenylphosphinoethane, and methylphenylphosphinopropane.
- organic phosphine As a method for obtaining the above-mentioned organic phosphine, generally, a commercially available organic phosphine may be used, but if necessary, it can be synthesized and used by a known method. Examples of the method for synthesizing the organic phosphine include, for example, Experimental Chemistry Lecture, 4th edition, vol. 24, p. 229, H. Hibbert. Chem. Ber., 39, 160 (1906) And the like, a Grinard reaction and the like.
- a desired organic compound is obtained.
- Phosphine may be synthesized.
- the amount of the organic phosphine used is usually in the range of 0.1 to 100, preferably 1 to 100 in terms of the atomic ratio of phosphorus atom to metal with respect to ruthenium metal.
- the phosphine may be substituted with the above organic phosphine.
- the atomic ratio of phosphorus atoms / metals is increased.
- the catalyst used in the present invention is characterized by containing ruthenium and an organic phosphine in which aliphatic carbon is bonded to two or more of the three bonds of a phosphorus atom.
- a neutral ligand or the like may be further contained as an optional component.
- optional components include hydrocarbons having an ethylenically unsaturated bond such as ethylene, propylene, butene, cyclopentene, cyclohexene, butadiene, cyclopentene, cyclooctene, norbonagene; Ethers such as anisol, dioxane, and tetrahydrofuran; carboxylic acids and carboxylic esters such as propionic acid, cabronic acid, butyric acid, benzoic acid, methyl benzoate, ethyl acetate, and aryl acetate; dimethyl sulfide, tributyl phosphoxide, and the like; Tildiphenylphosphine oxide, triphenylphosphineoxide, trioctylphosphineoxide, getylphenylphosphine, diphenylethylphosphine, triethylphosphate, trif Niruhosu phi DOO, organo
- a reaction raw material, a reaction product, or a solvent may be a component of the catalyst.
- the catalyst can be used in the form of a cationic complex, using a conjugate base of an acid with a pka less than 2. By forming a cationic complex, favorable results such as stabilization of the catalyst and improvement of the activity may be obtained.
- inorganic acids such as nitric acid, perchloric acid, borofluoric acid, hexafluorophosphoric acid, and fluorosulfonic acid; trichloroacetic acid, dichloroacetic acid, trifluoroacetic acid, dodecyl sulfonate, octadecyl sulfonic acid, and trifluroic acid
- Organic acids such as methanesulfonic acid, benzenesulfonic acid, paratoluenesulfonic acid, tetra (pentafluorophenyl) boronic acid, and sulfonated styrene-divinylbenzene copolymer; alkali metal salts of these inorganic acids and organic acids;
- compounds capable of providing a conjugate base of these acids for example, acid halides, acid anhydrides, esters, acid amides and the like can also be used.
- Compounds these pka gives less acid conjugate base than 2, usually 1 0 0 0 fold mole or less relative to ruthenium metal, the catalyst preferably c present invention used as a 1 0 0 times mole
- the preparation method is not particularly limited, but one example is ruthenium tris (acetylacetonato) and a 5- to 20-fold molar amount thereof.
- trialkylphosphine is added to the reaction raw material alcohol and stirred in a hydrogen atmosphere, an alcohol solution of the complex catalyst is generated.
- a compound that gives a conjugate base of an acid having a pka of 2 or less to the solution containing the catalyst obtained above is 0.1 to 20 mol times, preferably 1 to 20 times, that of ruthenium. What is necessary is just to add so that it may be 10 mol times.
- Cationic complex catalysts can be synthesized by adding ruthenium tris (acetylacetonato), trialkylphosphine and a compound that gives a conjugate base of an acid with a pka of 2 or less to the reaction raw material alcohol and stirring. can do.
- the alcohol as a reaction raw material may be a monohydric alcohol or a polyhydric alcohol as long as it has a primary or secondary hydroxyl group. Further, the alcohol may be saturated or unsaturated, and may have a substituent. Some examples are 1 For the polyhydric alcohols, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol, 1-pentanol, 2-pentanol, 3-pentanol, 1-pentanol Hexanol, 2-Hexanol, 3-Hexanol, 1-Heptanol, 2-Heptanol, 3-Hepanol, 4-Heptanol, 1-Oxanol, 2-Octanol, 3- Ok-Nor, 4-Ok-Nor,
- the position of the unsaturated bond is arbitrary.
- polyhydric alcohols examples include 1,3-propanediol, 1,4-butanediol, 1,5-pentynediol, 1,6-hexanediol, 1,7-hepanediol, 1,8- Octanediol, 1,2-cyclohexane dimethanol, 1,3-cyclohexane dimethanol, 1-hydroxymethyl 12-hydroxixylcyclohexane, 1-hydroxy-2-hydroxypropyl cyclohexane, 1-hydroxy-1-2-hydroxyhexylcyclohexane, 1-hydroxymethyl-1-hydroxyhydroxybenzene, 1-hydroxymethyl-2-hydroxypropylbenzene, 1-hydroxy-2-hydroxypropylbenzene, 1 : Divalent alcohols such as 2-benzyldimethylol and 1,3-benzyldimethylol.
- a polyester When an alcohol having two primary hydroxyl groups is used as a raw material, a polyester may be formed due to an intermolecular ester bond through the reaction process.However, two to four carbon atoms are bonded between carbon atoms to which the primary hydroxyl groups are bonded. When the carbon atom of Can form lactone compounds by intramolecular cyclization.
- alcohols having 4 or more carbon atoms are preferable, and 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and 1,7-heptanol are more preferable.
- Diols with 4 or more carbon atoms such as 1,4-octanediol and 1,8-octanediol.
- the present invention is suitable for dehydrogenation and cyclization reactions for producing gamma-maptirolactone from 1,4-butanediol.
- the dehydrogenation reaction of the alcohol according to the present invention is usually carried out without a solvent, that is, in the absence of a solvent other than the starting alcohol or the carbonyl compound of the product, but other solvents can be used if desired.
- a solvent examples include ethers such as dimethyl ether, anisol, tetrahydrofuran, ethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, and dioxane; methanol, ethanol, and n-butyl.
- Alcohols such as phenol, benzyl alcohol, ethylene glycol and diethylene glycol; phenols such as phenol; carboxylic acids such as formic acid, acetic acid, propionic acid and toluic acid; esters such as methyl acetate, butyl acetate and benzyl benzoate.
- Aromatic hydrocarbons such as benzene, toluene, ethylbenzene and tetralin; aliphatic hydrocarbons such as n-hexane, ⁇ -octane and cyclohexane; dichloromethane, trichloroethane, Halogenated hydrocarbons such as benzene; nitro compounds such as nitromethane and nitrobenzene; carboxylic acid amides such as ⁇ , ⁇ -dimethylformamide, ⁇ , ⁇ -dimethylacetamide and ⁇ -methylpyrrolidone; hexamethylphosphate triamide Urea such as ⁇ , ⁇ -dimethylimidazolidinone; sulfones such as dimethyl sulfone; sulfoxides such as dimethyl sulfoxide; lactones such as gamma butyrolactone and caprolactone; dimethyl carbonate And carbonic esters such as ethylene carbonate; and poly
- ethers and polyethers are preferred.
- the reaction temperature is usually from 20 to 350 ° C, preferably from 100 to 250 ° C (more preferably, from 150 to 220 ° C.
- the catalyst concentration is good. Is industrially desirable Although the activity may be sufficient, the reaction system is usually used so that the amount of ruthenium metal relative to the reaction solution is 0.0001 to 100 mol / L, preferably 0.001 to 10 mol / L. Should exist.
- the reaction usually proceeds as a homogeneous catalytic reaction.
- the catalyst used in the present invention can promote the alcohol dehydrogenation reaction with high activity and high selectivity, it is not particularly necessary to have a hydrogen acceptor in the reaction system.
- hydrogen acceptors include acetone, diphenyl acetylene, vinyl methyl ketone, benzalacetone, ethyl methyl ketone, norabenzoquinone, nitrobenzene, acetonitrile, vinyl chloride, benzonitrile, acetoaldehyde, formaldehyde, butyraldehyde, and benzaldehyde. And alkene or alkyne compounds.
- the reaction pressure is not particularly limited as long as the reaction system can be maintained in a liquid phase.
- the alcohol dehydrogenation reaction of the present invention is a reaction that generates hydrogen, and thus the hydrogen is extracted outside the system. It is preferable to perform the reaction in an open system at atmospheric pressure.
- the atmosphere is preferably an inert gas such as nitrogen, argon, helium, or carbon dioxide.
- the reaction can be performed in a batch mode or a continuous mode.
- the reaction product liquid distills off the carbonyl compound generated by distillation, and since the catalyst is dissolved in the residual liquid, it can be recovered and used as a catalyst in the next reaction.
- a carbonyl compound, particularly a lactone compound, obtained by the method of the present invention can be reacted with an alkylamine to produce a virolidone.
- N-methylpyrrolidone is produced by reacting gamma butyrolactone with methylamine, and can be widely used industrially as a detergent, a solvent and the like.
- the method for producing methylamine and N-methylvirolidone is not particularly limited, and any conventional method known per se may be employed. Examples of the method for producing methylamine include the methods described in U.S. Pat. No. 3,387,032 and Japanese Patent Application Laid-Open No. 9-12514. Usually, methanol and ammonia are used.
- N-methylpyrrolidone for example, the method described in Japanese Patent Publication No. 47-18751 or Japanese Patent Publication No. 6-78305 may be used. It can be obtained by heating and reacting mono-, di- and / or trimethylamine with gamma butyrolactone.
- carbonyl compounds obtained by the method of the present invention in particular, gamma-butyrolactone, can be used as a solvent for an electrolytic solution as described in JP-A-11-97062 or JP-A-11-135374. It can be used as a polyurethane washing solution and the like as disclosed in JP-A-9-176695.
- Example 3 4.00 g of the ruthenium catalyst prepared in Example 1, 86.80 g of triglyme as a solvent, and 9.39 g of 1,5-pentynediol were heated and stirred at 203 ° C for 3 hours. As a result, the conversion of 1,5-pentenediol was 100%, The selectivity of the catalyst was 88.9 mol%.
- Example 3 4.00 g of the ruthenium catalyst prepared in Example 1, 86.80 g of triglyme as a solvent, and 9.39 g of 1,5-pentynediol were heated and stirred at 203 ° C for 3 hours. As a result, the conversion of 1,5-pentenediol was 100%, The selectivity of the catalyst was 88.9 mol%.
- Example 3 4.00 g of the ruthenium catalyst prepared in Example 1, 86.80 g of triglyme as a solvent, and 9.39 g of 1,5-pentynedio
- a ruthenium catalyst was prepared in the same manner as in Example 1, except that trinormal hexylphosphine was used as the ligand.
- the prepared catalyst 6.15 was added to 93.33 g of 1,4-butanediol, and the mixture was heated to 203 ° C. and reacted for 4.5 hours as in Example 1 (Ru metal concentration: 2000 ppm by weight).
- Ru metal concentration 2000 ppm by weight
- a ruthenium catalyst was prepared in the same manner as in Example 1, except that trinormal butylphosphine was used as the ligand.
- the prepared catalyst 5.19 was added to 100.47 g of 1,4-butanediol, and the mixture was heated to 203 ° C. and reacted for 4 hours (Ru metal concentration: 2000 wt ppm) as in Example 1.
- Ru metal concentration: 2000 wt ppm Ru metal concentration
- Example 4 The catalyst of Example 4 2.49 was added to 100 ⁇ 31 g of 1,4-butanediol, and the mixture was heated to 203 ° C. and reacted for 5 hours (Ru metal concentration: 1000 ppm by weight) as in Example 1. As a result, the conversion of 1,4-butanediol was 1000.0 mol%, and the selectivity for gamma-butyrolactone was 98.9 mol%.
- Example 4 The catalyst of Example 4 (1.25) was added to 99.09 g of 1,4-butanediol, and the mixture was heated to 203 ° C and reacted for 7.5 hours in the same manner as in Example 1 (Ru metal concentration: 500 ppm by weight). ). As a result, the conversion of 1,4-butanediol was 1000.0 mol%, The selectivity was 99.3 mol%.
- a ruthenium catalyst was prepared in the same manner as in Example 1, except that trimethylphosphine was used as the ligand.
- the prepared catalyst 1.40 was added to 43.67 g of 1,4-butanediol, and the mixture was heated to 203 ° C. and reacted for 4 hours (Ru metal concentration: 2000 wt ppm) as in Example 1.
- Ru metal concentration: 2000 wt ppm Ru metal concentration: 2000 wt ppm
- a ruthenium catalyst was prepared in the same manner as in Example 1 using tribenzylphosphine as a ligand.
- the prepared catalyst 2.56 was added to 45.63 g of 1,4-butanediol, and the mixture was heated to 203 ° C. and reacted for 6 hours as in Example 1 (Hu metal concentration: 2000 weight 111).
- the conversion of 1,4-butanediol was 99.8 mol%
- the selectivity for gamma-butyrolactone was 99.2 mol%.
- a 50 OmL SUS autoclave was charged with 0.3 g of ruthenium tris (acetyl acetate), 3.2 g of trioctylphosphine and 30 OmL of triethyleneglycol-dimethylester, and pressurized to 5 MPa with hydrogen. While maintaining the temperature at 1.0 ° C. for 2 hours, a catalyst solution was prepared.
- Example 13 45 mL of the catalyst solution prepared in Example 11 and 50 g of 1: 4-butanediol were added to a 30-OmL round-bottom flask, and the mixture was heated to 200 ° C. and reacted for 6 hours. The conversion of 1,4-butanediol was 99.8% and the selectivity for gamma butyrolactone was 99.0%.
- Example 13
- a 500 mL SUS autoclave was charged with 0.32 g of ruthenium tris (acetyl acetate), 3.2 g of trioctylphosphine and 300 mL of triethyleneglycol-dimethyl ether, and 0.8 MPa with hydrogen. The mixture was kept at 200 ° C. for 5 hours while being pressurized to prepare a catalyst solution.
- a ruthenium catalyst was prepared in the same manner as in Comparative Example 1, except that dimethylphenylphosphine was used as the ligand. 5.81 1 ⁇ of the prepared catalyst solution was added to 95.34 g of 1,4-butanediol, and 203 was obtained in the same manner as in Example 1. The mixture was heated to C and reacted for 7 hours (Ru metal concentration: about 2,000 weight ppm). As a result, the conversion of 1,4-butanediol was 97.8 mol%, and the selectivity for gamma butyrolactone was 95.0 mol%. Comparative Example 1
- a ruthenium catalyst was prepared in the same manner as in Example 1 in toluene solvent using triphenylphosphine as a ligand. Toluene was removed by distillation under reduced pressure from the prepared catalyst toluene solution, and 7.48 was added to 24.89 g of 1,4-butanediol 1 and heated to 203 ° C for 8 hours in the same manner as in Example 1. (Ru metal concentration about 2000 weight ppm). As a result, the conversion of 1,4-butanediol was 84.0 mol%, and the selectivity for gamma-butyrolactone was 68.1 mol%. Comparative Example 2
- a ruthenium catalyst was prepared in the same manner as in Comparative Example 1, except that methyldiphenylphosphine was used as the ligand.
- the prepared catalyst solution 1.94 was added to 1,4-butanediol 48.66 g, and heated to 203 ° C and reacted for 12 hours in the same manner as in Example 1 (Ru metal concentration: about 2000 ppm by weight). .
- the conversion of 1,4-butanediol was 85.0 mol%, and the selectivity for gamma butyrolactone was 54.2 mol%. Comparative Example 3
- Ir catalyst was synthesized from 0.635 g of iridium tris (acetyl acetonate) and 4.84 g of 10 molar equivalents of tri-n-octylphosphine. . 3.73 g of this iridium catalyst was heated to 205 ° C in the same manner as in Example 1, added to 81.5 g of 1,4-butanediol, and heated at 203 ° C for 10 hours. The mixture was heated and stirred. As a result, the conversion of 1,4-butanediol was 5.2%, and the selectivity for gamma-butyrolactone was 0.0% by mole. Industrial applicability
- the method of the present invention for producing a carbonyl compound by dehydrogenating an alcohol can industrially advantageously produce a carbonyl compound under mild reaction conditions with good selectivity and high yield.
- the present invention can industrially and advantageously produce gamma-butyrolactone with high selectivity and high yield under mild reaction conditions by dehydrogenating and cyclizing 1,4-butanediol. .
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00983486A EP1160245B1 (en) | 1999-12-21 | 2000-12-15 | Process for producing carbonyl compounds by dehydrogenation of alcohols |
| DE60037109T DE60037109T2 (de) | 1999-12-21 | 2000-12-15 | Verfahren zur herstellung von carbonylverbindungen durch dehydrogenierung von alkoholen |
| US09/933,070 US6492532B2 (en) | 1999-12-21 | 2001-08-21 | Method for producing carbonyl compound by dehydrogenating alcohol |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36239399 | 1999-12-21 | ||
| JP11/362393 | 1999-12-21 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/933,070 Continuation US6492532B2 (en) | 1999-12-21 | 2001-08-21 | Method for producing carbonyl compound by dehydrogenating alcohol |
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| Publication Number | Publication Date |
|---|---|
| WO2001046169A1 true WO2001046169A1 (fr) | 2001-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2000/008926 Ceased WO2001046169A1 (fr) | 1999-12-21 | 2000-12-15 | Procede de production de composes carbonyles par deshydrogenation d'alcools |
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| Country | Link |
|---|---|
| US (1) | US6492532B2 (ja) |
| EP (1) | EP1160245B1 (ja) |
| DE (1) | DE60037109T2 (ja) |
| WO (1) | WO2001046169A1 (ja) |
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| US8292964B2 (en) * | 2005-12-14 | 2012-10-23 | New York University | Surface guided knee replacement |
| US8211181B2 (en) * | 2005-12-14 | 2012-07-03 | New York University | Surface guided knee replacement |
| KR100943528B1 (ko) * | 2007-07-23 | 2010-02-22 | 이수화학 주식회사 | N-메틸피롤리돈의 제조방법 |
| WO2009082086A1 (en) * | 2007-12-21 | 2009-07-02 | Isu Chemical Co., Ltd. | Process for preparing of n-methyl pyrrolidone |
| US8292965B2 (en) * | 2008-02-11 | 2012-10-23 | New York University | Knee joint with a ramp |
Citations (2)
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|---|---|---|---|---|
| JPH01190667A (ja) * | 1988-01-21 | 1989-07-31 | Mitsubishi Kasei Corp | N−メチル−2−ピロリドンの製造方法 |
| JPH11135374A (ja) * | 1997-10-31 | 1999-05-21 | Mitsubishi Chemical Corp | 電気化学キャパシタ用電解液 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5106995A (en) * | 1989-05-05 | 1992-04-21 | Isp Investments Inc. | Production of lactones from diols |
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2000
- 2000-12-15 DE DE60037109T patent/DE60037109T2/de not_active Expired - Lifetime
- 2000-12-15 EP EP00983486A patent/EP1160245B1/en not_active Expired - Lifetime
- 2000-12-15 WO PCT/JP2000/008926 patent/WO2001046169A1/ja not_active Ceased
-
2001
- 2001-08-21 US US09/933,070 patent/US6492532B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01190667A (ja) * | 1988-01-21 | 1989-07-31 | Mitsubishi Kasei Corp | N−メチル−2−ピロリドンの製造方法 |
| JPH11135374A (ja) * | 1997-10-31 | 1999-05-21 | Mitsubishi Chemical Corp | 電気化学キャパシタ用電解液 |
Non-Patent Citations (2)
| Title |
|---|
| ISHII Y.: "Ruthenium complex catalyzed regioselective dehydrogenation of unsymmetric alpha, omega-diols", J. ORG. CHEM., vol. 51, no. 11, 1986, pages 2034 - 2039, XP002936704 * |
| See also references of EP1160245A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6492532B2 (en) | 2002-12-10 |
| EP1160245A4 (en) | 2004-09-01 |
| US20020002289A1 (en) | 2002-01-03 |
| DE60037109D1 (de) | 2007-12-27 |
| DE60037109T2 (de) | 2008-09-11 |
| EP1160245B1 (en) | 2007-11-14 |
| EP1160245A1 (en) | 2001-12-05 |
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