WO2009125581A1 - カテコールの製造方法 - Google Patents
カテコールの製造方法 Download PDFInfo
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- WO2009125581A1 WO2009125581A1 PCT/JP2009/001607 JP2009001607W WO2009125581A1 WO 2009125581 A1 WO2009125581 A1 WO 2009125581A1 JP 2009001607 W JP2009001607 W JP 2009001607W WO 2009125581 A1 WO2009125581 A1 WO 2009125581A1
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- catechol
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- trihydroxy
- cyclohexen
- reaction
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation
- C07C37/07—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation with simultaneous reduction of C=O group in that ring
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- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/62—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by hydrogenation of carbon-to-carbon double or triple bonds
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- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
- C07C45/66—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Definitions
- the present invention relates to a new production method for producing catechol from 2-deoxy-scyllo-inosose via an intermediate (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- Catechol is a widely used substance as a raw material for polymerization inhibitors, pharmaceuticals, agricultural chemicals, fragrances, etc., and as an oxidation inhibitor and rubber vulcanizing agent. It is produced mainly by oxidizing phenol with hydrogen peroxide. Has been. However, production from renewable resources is eagerly desired from the viewpoint of the recent rise and depletion of fossil raw materials and the suppression of emission of carbon dioxide as a warming gas.
- Non-Patent Document 1 a method of obtaining catechol with a yield of 33% from D-glucose via shikimic acid by a microorganism is known.
- Non-Patent Document 2 a method is known in which catechol is obtained from D-glucose through 2-deoxy-scyllo-inosose and reductive dehydration with hydroiodic acid in acetic acid in a yield of 59%. ing. J. et al. Am. Chem. Soc. K. M.M. Draths and J.M. W. Frost, 1995, 117, p. 2395-2400 Tetrahedron Letters, Katsumi Kakinuma et. Al, 2000, 41, p. 1935-1938 J. et al. Am. Chem. Soc. C. A. Hansen and J.M. W. Frost, 2002, 124, p. 5926-5927 Carbohydrate Research A. Lubineau and I.M. Billault, 1999, 320, p. 49-60
- Non-Patent Document 2 has a problem that a large amount of expensive and highly corrosive hydroiodic acid must be used. Therefore, special equipment is required due to its corrosiveness, and it is not easy to produce industrially.
- the present invention has been made in view of the above circumstances, and an object thereof is to make it possible to produce catechol, which is a general-purpose chemical, by an industrially suitable method.
- the present invention can include the following aspects.
- 2-deoxy-scyllo-inosose represented by the following formula (2) is dehydrated to (4S, 5R, 6S) -4,5,6-trihydroxy-2
- a method for producing catechol by producing cyclohexen-1-one and further carrying out a hydrogenation reaction and a dehydration reaction.
- a method for producing catechol by reacting with heating under hydrogen reduction conditions (5) A method for producing catechol by reacting (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one in the presence of a metal catalyst in the above method for producing catechol. . (6) The method for producing catechol in the method for producing catechol as described above, wherein the metal catalyst contains a metal selected from the group consisting of a white metal or a group consisting of an iron group metal. (7) The method for producing catechol in the method for producing catechol as described above, wherein the metal catalyst contains palladium. (8) The method for producing catechol, wherein the metal component contained in the metal catalyst is supported on activated carbon, alumina, or zeolite.
- a method for producing catechol by reacting (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one in an aqueous solution in the above method for producing catechol.
- the method for producing catechol, wherein the solid acid is selected from the group consisting of zeolite, activated clay, and Nafion (registered trademark).
- the present invention also provides (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- the present invention also provides a method for producing catechol by subjecting (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one to a dehydration reaction while heating.
- (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is reduced with hydrogen, and (2S, 3R, 4S) -2,3,
- a method of producing 4-trihydroxycyclohexane-1-one is provided.
- catechol is produced by reacting 2,3,4,5-tetrahydroxy-cyclohexane-1-one represented by the following formula (4) while heating under hydrogen reduction conditions. A method is provided.
- catechol can be produced from (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- catechol is produced by reducing an olefin of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one and dehydrating two molecules of water. Can do. Therefore, catechol can be obtained under mild conditions without using a corrosive reagent, and manufacture of catechol suitable for industrial production with reduced environmental load can be realized.
- catechol which is a general-purpose chemical can be produced by a method suitable for industrial production with reduced environmental load.
- the present embodiment is a method for producing catechol from (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one represented by the following formula (1).
- This method produces catechol by the reaction represented by the formula (5).
- catechol is produced by reacting (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one with heating under hydrogen reduction conditions. It is a method to do.
- catechol is produced from (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one in one pot.
- the one-pot here means that several reactions are carried out in the same reaction vessel, specifically, a reduction reaction and a dehydration reaction.
- reaction under “hydrogen reduction conditions” means that it was dissolved in a solvent (4S, 5R , 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one together with a reduction catalyst in a hydrogen atmosphere.
- the solvent is not particularly limited as long as it does not interfere with the progress of the reaction, but water or alcohol solvents such as methanol, ethanol and butanol, hydrocarbon solvents such as hexane, toluene and xylene, ethyl acetate and butyl acetate. And ester solvents such as diisopropyl ether, dioxane, ethylene glycol dimethyl ether and tetrahydrofuran, halogen solvents such as chloroform and dichloromethane, acetonitrile, dimethylformamide and dimethyl sulfoxide. These solvents can be used alone or as a mixed solvent in any ratio of two or more, but it is preferable to use water.
- alcohol solvents such as methanol, ethanol and butanol
- hydrocarbon solvents such as hexane, toluene and xylene, ethyl acetate and butyl acetate.
- ester solvents such as di
- the concentration of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one charged is not particularly limited. For example, it is preferably 1 w / v% or more and 30 w / v% or less. .
- “while heating” is to raise the reaction temperature above the air temperature, and is a concept including changing the temperature with time during the reaction as necessary, and changing the temperature.
- the reaction can be advanced step by step. As a normal reaction temperature range, it is 30 degreeC or more and 300 degrees C or less. When the reaction temperature is low, the reaction rate of the dehydration reaction decreases, and when the reaction temperature is high, the side reaction proceeds. Therefore, catechol can be produced with good yield by heating at 30 ° C. or more and 300 ° C. or less. More preferably, it is 35 degreeC or more and 240 degrees C or less, More preferably, you may be 70 degreeC or more and 200 degrees C or less. By so doing, the dehydration reaction can proceed at a suitable reaction rate, and catechol can be produced with higher yield.
- the reaction time is not particularly limited, but is in the range of several minutes to 48 hours, preferably 30 minutes to 24 hours.
- a metal selected from white metal such as palladium, rhodium, ruthenium, platinum and iridium, an iron group metal such as nickel and cobalt, and a metal such as copper can be used. These metals may be used alone or may be supported on activated carbon, silica gel, alumina, graphite, diatomaceous earth, pumice, montmorillonite, zeolite or the like.
- the supported amount is usually in the range of 0.01 to 50% by weight with respect to the carrier. By doing so, the reduction reaction can be suitably advanced.
- the amount of the reduction catalyst added is preferably in the range of 0.1 to 10% by weight.
- the reaction is performed in a reactor filled with a gas containing hydrogen from atmospheric pressure to 10 MPa, and preferably from atmospheric pressure to 1 MPa. Hydrogen can be used alone or mixed with nitrogen.
- reaction can be carried out without catalyst by heating, but an additive can be added to the reaction to promote the reaction. Acids, bases and salts thereof can be used as additives.
- Examples of the acid used include inorganic acids such as hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, citric acid, lactic acid, benzoic acid, trifluoroacetic acid, p-toluenesulfonic acid And organic acids such as methanesulfonic acid and dodecylbenzenesulfonic acid, and solid acids such as zeolite, silica gel, alumina, activated clay, Nafion (registered trademark) and ion exchange resin.
- the amount of acid added is preferably in the range of 1 to 2000% by weight.
- Examples of the base used include inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate, and organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate
- organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- the filtrate is concentrated to obtain crude purified catechol as crystals.
- Crude catechol can be obtained as purified catechol by distillation or recrystallization.
- the reaction solution in a heated state is concentrated to a certain extent and then cooled to precipitate catechol as crystals, which can be obtained by filtration.
- catechol can be precipitated as crystals by adding a solvent in which catechol is difficult to dissolve, and can be obtained by filtration.
- it can extract by adding a suitable solvent to a reaction solvent. The extract can be obtained as a more purified catechol by processing in the same manner as described above.
- (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is reacted while being heated in a hydrogen atmosphere.
- the reaction and the dehydration reaction can be performed simultaneously.
- catechol can be produced by using an equimolar amount of hydrogen and a small amount of catalyst. Therefore, catechol can be produced inexpensively under mild conditions without using a corrosive reagent, and easy catechol production suitable for industrial production can be realized.
- 2-deoxy-scyllo-inosose represented by the following formula (2) is dehydrated to give (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- This is a method for producing catechol by producing and further carrying out a hydrogenation reaction and a dehydration reaction.
- catechol is produced by the reaction represented by the formula (6).
- 2-deoxy-scyllo-inosose is reacted with heating under hydrogen reduction conditions via (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- catechol is produced in one pot.
- 2-deoxy-scyllo-inosose is dehydrated to produce (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one, which is further heated under hydrogen reduction conditions.
- Catechol is produced by reacting.
- catechol is produced from 2-deoxy-scyllo-inosose in one pot.
- hydroxen-1-one in producing catechol from 2-deoxy-scyllo-inosose via (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one, “hydrogen reduction “Reacting with heating under conditions” means that 2-deoxy-scyllo-inosose dissolved in a solvent is heated and reacted with a reducing catalyst in a hydrogen atmosphere.
- the solvent is not particularly limited as long as it does not hinder the progress of the reaction, but water, alcohol solvents such as methanol, ethanol, butanol, hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc. And ester solvents such as diisopropyl ether, dioxane, ethylene glycol dimethyl ether, and tetrahydrofuran, halogen solvents such as chloroform and dichloromethane, acetonitrile, dimethylformamide, and dimethyl sulfoxide. These solvents can be used alone or as a mixed solvent in any ratio of two or more, but it is preferable to use water.
- alcohol solvents such as methanol, ethanol, butanol
- hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc.
- the concentration of 2-deoxy-scyllo-inosose charged is not particularly limited, but is preferably 1 w / v% or more and 30 w / v% or less, for example.
- “while heating” is to raise the reaction temperature above the air temperature, and is a concept including changing the temperature with time during the reaction as necessary, and changing the temperature.
- the reaction can be advanced step by step. As a normal reaction temperature range, it is 30 degreeC or more and 300 degrees C or less. When the reaction temperature is low, the reaction rate of the dehydration reaction decreases, and when the reaction temperature is high, the side reaction proceeds. Therefore, catechol can be produced with good yield by heating at 30 ° C. or more and 300 ° C. or less. More preferably, it is 60 degreeC or more and 240 degrees C or less, More preferably, you may be 70 degreeC or more and 200 degrees C or less. By so doing, the dehydration reaction can proceed at a suitable reaction rate, and catechol can be produced with higher yield.
- the reaction time is not particularly limited, but ranges from several minutes to 48 hours, preferably from 1 hour to 24 hours. This ensures dehydration of 2-deoxy-scyllo-inosose and reduces the intermediate (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one And catechol can be produced with good yield.
- a metal selected from white metal such as palladium, rhodium, ruthenium, platinum and iridium, an iron group metal such as nickel and cobalt, and a metal such as copper can be used. These metals may be used alone or may be supported on activated carbon, silica gel, alumina, graphite, diatomaceous earth, pumice, montmorillonite, zeolite or the like.
- the supported amount is usually in the range of 0.01 to 50% by weight with respect to the carrier. By doing so, the reduction reaction can be suitably advanced.
- the amount of the reduction catalyst added is preferably in the range of 0.1 to 10% by weight.
- the reaction is performed in a reactor filled with a gas containing hydrogen from atmospheric pressure to 10 MPa, and preferably from atmospheric pressure to 1 MPa. Hydrogen can be used alone or mixed with nitrogen.
- reaction can be carried out without catalyst by heating, but an additive can be added to the reaction to promote the reaction. Acids, bases and salts thereof can be used as additives.
- Examples of the acid used include inorganic acids such as hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, citric acid, lactic acid, benzoic acid, trifluoroacetic acid, p-toluenesulfonic acid And organic acids such as methanesulfonic acid and dodecylbenzenesulfonic acid, and solid acids such as zeolite, silica gel, alumina, activated clay, Nafion (registered trademark) and ion exchange resin.
- the amount of acid added is preferably in the range of 1 to 2000% by weight.
- Examples of the base used include inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate, and organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate
- organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- the one-pot here means that several reactions are performed in the same reaction vessel, and specifically, a reduction reaction and a dehydration reaction.
- the filtrate is concentrated to obtain crude purified catechol as crystals.
- Crude catechol can be obtained as purified catechol by distillation or recrystallization.
- the reaction solution in a heated state is concentrated to a certain extent and then cooled to precipitate catechol as crystals, which can be obtained by filtration.
- catechol can be precipitated as crystals by adding a solvent in which catechol is difficult to dissolve, and can be obtained by filtration.
- it can extract by adding a suitable solvent to a reaction solvent. The extract can be obtained as a more purified catechol by processing in the same manner as described above.
- catechol can be produced by reacting 2-deoxy-scyllo-inosose in one pot while heating under hydrogen reduction conditions.
- catechol can be produced at low cost without using a corrosive reagent from D-glucose which is a renewable resource. Accordingly, it is possible to produce catechol suitable for industrial production.
- (4S, 5R, 6S)- is produced by reacting 2-deoxy-scyllo-inosose, which is easily obtained by fermentation from glucose, which is a renewable resource, while heating under hydrogen reduction conditions.
- Catechol can be obtained via 4,5,6-trihydroxy-2-cyclohexen-1-one. Therefore, catechol can be easily produced by simultaneously performing a reduction reaction and dehydration reaction by hydrogenation in one pot.
- Non-Patent Document 2 a method is known in which 2-deoxy-scyllo-inosose is subjected to a reductive dehydration reaction with hydrogen iodide in acetic acid to obtain catechol at a yield of 59%.
- this reaction requires two molecules of hydrogen iodide for 2-deoxy-scyllo-inosose. That is, it is considered that one molecule of hydrogen iodide is added to the carbonyl group, then reacts with another molecule of hydrogen iodide, is reduced while being eliminated as iodine and water, and further dehydrated to generate catechol. For this reason, there was a problem that two equivalents of expensive and highly corrosive hydroiodic acid had to be used even in an ideal reaction.
- a hydrogen reduction reaction can be performed using a metal catalyst. Therefore, the raw material cost can be reduced, which is advantageous for industrial production. In addition, since a large amount of corrosive reagent is not used, it is environmentally friendly.
- catechol can be produced by reacting 2-deoxy-scyllo-inosose in one pot. Therefore, the labor for isolation and purification in each step is saved, which is further advantageous for industrial production.
- catechol which is a general-purpose chemical
- 2-deoxy-scyllo-inosose which is easily produced from glucose, which is a renewable resource, as a raw material. This is useful for reducing the use of fossil raw materials, suppressing emissions of greenhouse gases, and preventing global warming.
- Step 1 producing (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one from 2-deoxy-scyllo-inosose
- Step 2 From (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one to (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one Manufacturing process.
- Step 3 A step of producing catechol from (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one.
- Step 1 is a step of dehydrating 2-deoxy-scyllo-inosose to produce (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one.
- the reaction temperature is 30 ° C. or more and 300 It can be carried out by setting the temperature to not more than ° C.
- the reaction temperature is low, the reaction rate of the dehydration reaction decreases, and when the reaction temperature is high, the side reaction proceeds. Therefore, (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one can be produced in good yield by heating at 30 ° C. or more and 300 ° C. or less. More preferably, the temperature range is 100 ° C. or higher and 240 ° C. or lower. By doing so, the dehydration reaction can proceed at a suitable reaction rate, and (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is produced with higher yield. be able to.
- the solvent is not particularly limited as long as it does not hinder the progress of the reaction, but water, alcohol solvents such as methanol, ethanol, butanol, hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc. And ester solvents such as diisopropyl ether, dioxane, ethylene glycol dimethyl ether, and tetrahydrofuran, halogen solvents such as chloroform and dichloromethane, acetonitrile, dimethylformamide, and dimethyl sulfoxide. These solvents can be used alone or as a mixed solvent in any ratio of two or more, but it is preferable to use water.
- alcohol solvents such as methanol, ethanol, butanol
- hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc.
- the reaction time is not particularly limited, but ranges from several minutes to 48 hours, preferably from 15 minutes to 24 hours. In this way, 2-deoxy-scyllo-inosose can be surely dehydrated and (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one can be produced with good yield. it can.
- reaction can be carried out without catalyst by heating, acids, bases and salts thereof can be used as additives for promoting the reaction.
- Examples of the acid used include inorganic acids such as hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, citric acid, lactic acid, benzoic acid, trifluoroacetic acid, p-toluenesulfonic acid And organic acids such as methanesulfonic acid and dodecylbenzenesulfonic acid, and solid acids such as zeolite, silica gel, alumina, activated clay, Nafion (registered trademark) and ion exchange resin.
- the amount of acid added is preferably in the range of 1 to 2000% by weight.
- Examples of the base used include inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate, and organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate
- organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- Non-Patent Document 3 when 2, molecules of water are dehydrated from 2-deoxy-scyllo-inosose, 1,2,4-trihydroxybenzene is produced. Therefore, in order to obtain (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one in good yield, it is necessary to control the reaction temperature, time and catalyst. More specifically, when the reaction is carried out at a high temperature, the reaction is carried out for a short time with a weak catalyst or no catalyst, and at a low temperature, the reaction is carried out for a long time using a strong catalyst, whereby 1,2,4-trihydroxybenzene. Generation can be suppressed.
- the catalyst refers to an additive exemplified by the above acid or base.
- the same type of catalyst can be reacted as a strong catalyst by increasing the concentration in the solution, and can be reacted as a weak catalyst by decreasing the concentration in the solution.
- the catalyst can be said to be stronger as the pH of the solution is farther from 7, and the catalyst closer to pH 7 can be said to be weaker.
- (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one was synthesized in good yield by controlling the reaction temperature and time while appropriately changing the catalyst. can do.
- a crude product After completion of the reaction (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one, a crude product can be obtained by concentrating the reaction solution. If necessary, the pH can be adjusted to around neutral (pH 6 to 8). Moreover, when a heterogeneous additive is used, a crudely purified product can be obtained by removing the reaction solution by filtration and concentrating the filtrate in the same manner. Furthermore, the crude product can be purified by recrystallization or silica gel column to obtain (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one with higher purity. .
- step 2 (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is reduced with hydrogen in the presence of a metal catalyst, and (2S, 3R, 4S) -2,3, This is a process for producing 4-trihydroxycyclohexane-1-one.
- a metal selected from white metal such as palladium, rhodium, ruthenium, platinum and iridium, an iron group metal such as nickel and cobalt, and a metal such as copper can be used.
- white metal such as palladium, rhodium, ruthenium, platinum and iridium
- an iron group metal such as nickel and cobalt
- a metal such as copper
- These metals may be used alone or may be supported on activated carbon, silica gel, alumina, graphite, diatomaceous earth, pumice, montmorillonite, zeolite or the like.
- the supported amount is usually in the range of 0.01 to 50% by weight with respect to the carrier.
- the amount of the reduction catalyst added is preferably in the range of 0.1 to 10% by weight.
- the reaction is performed in a reactor filled with a gas containing hydrogen from atmospheric pressure to 10 MPa, and preferably from atmospheric pressure to 1 MPa. Hydrogen can be used alone or mixed with nitrogen.
- the solvent is not particularly limited as long as it does not hinder the progress of the reaction, but water, alcohol solvents such as methanol, ethanol, butanol, hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc. And ester solvents such as diisopropyl ether, dioxane, ethylene glycol dimethyl ether, and tetrahydrofuran, halogen solvents such as chloroform and dichloromethane, acetonitrile, dimethylformamide, and dimethyl sulfoxide. These solvents can be used alone or as a mixed solvent in an arbitrary ratio of two or more. By using methanol, the dehydration reaction can be suppressed (2S, 3R, 4S) -2, 3 , 4-trihydroxycyclohexane-1-one is preferable because it can be produced with high yield.
- alcohol solvents such as methanol, ethanol, butano
- the concentration of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one charged is not particularly limited. For example, it is preferably 1 w / v% or more and 30 w / v% or less. .
- an additive can be added to the reaction to promote the reaction.
- Acids, bases and salts thereof can be used as additives.
- Examples of the acid used include inorganic acids such as hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, citric acid, lactic acid, benzoic acid, trifluoroacetic acid, p-toluenesulfonic acid And organic acids such as methanesulfonic acid and dodecylbenzenesulfonic acid, and solid acids such as zeolite, silica gel, alumina, activated clay, Nafion (registered trademark) and ion exchange resin.
- the amount of acid added is preferably in the range of 1 to 2000% by weight.
- Examples of the base used include inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate, and organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate
- organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- reaction temperature it can be carried out from room temperature (25 ° C.) to 300 ° C., but preferably in the temperature range from 60 ° C. to 240 ° C.
- the reduction reaction can proceed at a suitable reaction rate, and the progress of the dehydration reaction can be suppressed. Therefore, (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one can be produced with higher yield.
- the reaction time is not particularly limited, but is in the range of several minutes to 48 hours, preferably 10 minutes to 24 hours.
- (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one can be obtained by removing the reduction catalyst by filtration and concentrating the filtrate. By performing recrystallization as necessary, (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one with higher purity can be obtained.
- Step 3 is a step of producing catechol by subjecting (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one to a dehydration reaction while heating.
- the solvent is not particularly limited as long as it does not hinder the progress of the reaction, but water, alcohol solvents such as methanol, ethanol, butanol, hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc. And ester solvents such as diisopropyl ether, dioxane, ethylene glycol dimethyl ether, and tetrahydrofuran, halogen solvents such as chloroform and dichloromethane, acetonitrile, dimethylformamide, and dimethyl sulfoxide. These solvents can be used alone or as a mixed solvent in any ratio of two or more, but it is preferable to use water.
- alcohol solvents such as methanol, ethanol, butanol
- hydrocarbon solvents such as hexane, toluene, xylene, ethyl acetate, butyl acetate, etc.
- the concentration of (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one charged is not particularly limited, but is preferably 1 w / v% or more and 30 w / v% or less, for example.
- an additive can be added to the reaction to promote the reaction.
- Acids, bases and salts thereof can be used as additives.
- Examples of the acid used include inorganic acids such as hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, citric acid, lactic acid, benzoic acid, trifluoroacetic acid, p-toluenesulfonic acid And organic acids such as methanesulfonic acid and dodecylbenzenesulfonic acid, and solid acids such as zeolite, silica gel, alumina, activated clay, Nafion (registered trademark) and ion exchange resin.
- the amount of acid added is preferably in the range of 1 to 2000% by weight.
- Examples of the base used include inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate, and organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- inorganic bases such as lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and sodium hydrogen carbonate
- organic amine bases such as triethylamine, pyridine, and 1,8-diazabicycloundecene. Etc.
- “while heating” is to raise the reaction temperature above the air temperature, and is a concept including changing the temperature with time during the reaction as necessary, and changing the temperature.
- the reaction can be advanced step by step. It means heating at 30 ° C. or more and 300 ° C. or less. When the reaction temperature is low, the reaction rate decreases, and when the reaction temperature is high, side reactions proceed. Therefore, catechol can be produced by heating at 30 ° C. or more and 300 ° C. or less. More preferably, the temperature ranges from 60 ° C. to 240 ° C., and more preferably from 70 ° C. to 200 ° C. By so doing, the dehydration reaction can proceed at a suitable reaction rate, and catechol can be produced with higher yield.
- the reaction time is not particularly limited, but is in the range of several minutes to 48 hours, preferably 10 minutes to 24 hours.
- the filtrate is concentrated to obtain crude purified catechol as crystals.
- Crude catechol can be obtained as purified catechol by distillation or recrystallization.
- the reaction solution in a heated state is concentrated to a certain extent and then cooled to precipitate catechol as crystals, which can be obtained by filtration.
- catechol can be precipitated as crystals by adding a solvent in which catechol is difficult to dissolve, and can be obtained by filtration.
- it can extract by adding a suitable solvent to a reaction solvent. The extract can be obtained as a more purified catechol by processing in the same manner as described above.
- 2-deoxy-scyllo-inosose is dehydrated and the resulting (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is reduced (2S, Catechol can be produced by dehydration after 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one.
- Step 1 of the present embodiment 2-deoxy-scyllo-inosose is dehydrated while being heated, and (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexene- 1-one can be produced.
- (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one which is an important intermediate for producing catechol useful as a general-purpose chemical, can be easily produced. it can.
- 2-deoxy-scyllo-inosose is known to dehydrate two molecules of water to form 1,2,4-trihydroxybenzene by heating in 0.5 M aqueous phosphoric acid.
- Non-patent Document 3 by reacting 2-deoxy-scyllo-inosose while controlling the reaction temperature, time and catalyst, one molecule of water is dehydrated (4S, 5R, 6S) -4,5,6-trihydroxy- It can be 2-cyclohexen-1-one.
- step 2 of the present embodiment (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one is reduced and (2S, 3R, 4S) — 2,3,4-Trihydroxycyclohexane-1-one can be prepared.
- (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one which is an important intermediate for producing catechol useful as a general-purpose chemical, can be easily produced.
- (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one has the opposite stereology to (4R, 5S, 6R) -4,5,6-trihydroxy -2-Cyclohexen-1-one was known (Non-Patent Document 4 etc.).
- a method for synthesizing (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one has not been known.
- This substance is a useful intermediate for the purpose of producing catechol, and its double bond is easily reduced with hydrogen in the presence of a catalyst, and (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane- Catechol can be obtained by becoming 1-one and performing a dehydration reaction in the presence or absence of a catalyst. Therefore, by making it possible to produce (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one, it is possible to easily produce catechol useful as a general-purpose chemical. Become.
- catechol can be produced by subjecting (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one to a dehydration reaction while heating. it can.
- catechol useful as a general-purpose chemical can be produced from renewable resources such as glucose.
- Example 1 ⁇ Synthesis of catechol from 2-deoxy-scyllo-inosose> 150 mg of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was dissolved in 3 mL of 0.5N acetic acid and charged into an autoclave. Further, 3 mg (containing 50 wt% water) of 5 wt% Pd / C (palladium / activated carbon) was charged, and the reactor was replaced with nitrogen. The mixture was heated to 100 ° C. with stirring while applying a hydrogen pressure of 0.35 MPa, and the hydrogenation reaction was carried out for 19 hours. After cooling, the atmosphere was replaced with nitrogen, and quantitative analysis was performed using HPLC.
- Pd / C palladium / activated carbon
- Example 2 ⁇ Synthesis of catechol from 2-deoxy-scyllo-inosose> 150 mg of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was dissolved in 3 mL of water and charged into an autoclave. Further, 3 mg (containing 50 wt% water) of 5 wt% Pd / C was charged, and the reactor was replaced with nitrogen. Hydrogenation reaction was performed by applying a hydrogen pressure of 0.1 MPa and heating to 170 ° C. with stirring. During the reaction, the reaction solution was collected and analyzed using HPLC.
- Example 4 ⁇ Synthesis of (2S, 3R, 4S) -2,3,4-trihydroxycyclohexane-1-one from (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one> 205 mg of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one obtained in Example 3 was dissolved in 3.5 mL of methanol. 5 mg Pd / C 20 mg (containing 50 wt% water) was added, and hydrogenation was performed at room temperature (25 ° C.) under normal pressure (1 atm).
- Example 6 ⁇ Synthesis of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one from 2-deoxy-scyllo-inosose> 0.15 g of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was added to 1.35 mL of 0.5N aqueous acetic acid and heated at 120 ° C. for 1 hour. As a result of quantitative analysis using HPLC after completion of the reaction, (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one was obtained in a yield of 33%.
- Example 7 ⁇ Synthesis of (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one from 2-deoxy-scyllo-inosose> 0.05 g of 2-deoxy-scyllo-inosose synthesized by the method described in WO 2006/112000 pamphlet was added to 1 mL of 5N aqueous acetic acid and heated at 100 ° C. for 2 hours. As a result of quantitative analysis using HPLC after completion of the reaction, (4S, 5R, 6S) -4,5,6-trihydroxy-2-cyclohexen-1-one was obtained in a yield of 48%.
- Example 9 ⁇ Synthesis of catechol from 2-deoxy-scyllo-inosose> 150 mg of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was dissolved in 3 mL of water and charged into an autoclave. Further, 7 mg (containing 50 wt% water) of 5 wt% Pd / C was charged, and the reactor was replaced with nitrogen. The mixture was heated to 130 ° C. with stirring under a hydrogen pressure of 0.3 MPa, and a hydrogenation reaction was performed for 3 hours. After cooling, the atmosphere was replaced with nitrogen, and quantitative analysis was performed using HPLC. As a result, the raw material disappeared and catechol was obtained in a yield of 29%. Analysis conditions were the same as in Example 1.
- Example 17 ⁇ Synthesis of catechol from 2-deoxy-scyllo-inosose> 150 mg of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was dissolved in 3 mL of water and charged into an autoclave. Further, 1.8 mg (containing 50 wt% water) of 5 wt% Pd / C was charged, and the reactor was replaced with nitrogen. The mixture was heated to 130 ° C. with stirring under a hydrogen pressure of 0.3 MPa, and a hydrogenation reaction was performed for 3 hours. After cooling, the atmosphere was replaced with nitrogen, and quantitative analysis was performed using HPLC. As a result, the raw material disappeared and catechol was obtained in a yield of 39%. Analysis conditions were the same as in Example 1.
- Example 18 ⁇ Synthesis of catechol from 2-deoxy-scyllo-inosose> 150 mg of 2-deoxy-scyllo-inosose synthesized by the method described in the pamphlet of WO 2006/112000 was dissolved in 3 mL of water and charged into an autoclave. Further, 1.5 mg of 5 wt% Pd / C (containing 50 wt% water) and 155 mg of sulfuric acid were charged, and the reactor was replaced with nitrogen. The mixture was heated to 70 ° C. with stirring under a hydrogen pressure of 0.3 MPa, and the hydrogenation reaction was carried out for 10 hours. After cooling, the atmosphere was replaced with nitrogen, and quantitative analysis was performed using HPLC. As a result, the raw material disappeared and catechol was obtained with a yield of 41%. Analysis conditions were the same as in Example 1.
- Example 19 instead of the sulfuric acid used in Example 18, the acid shown in Table 2 was used, and the reaction was performed in the same manner as in Example 18 except that the reaction temperature was 90 ° C., and analysis was performed. The results are shown in Table 2 together with the catechol yield.
- Example 23 The reaction was carried out in the same manner as in Example 22 except that 155 mg of zeolite HZSM5 (NE Chemcat Co., Ltd.) was used as the solid acid instead of zeolite H ⁇ . The results are shown in Table 3.
- Example 24 The reaction was carried out in the same manner as in Example 22 except that 153 mg of activated clay (Wako Pure Chemical Industries, Ltd.) was used as the solid acid instead of zeolite H ⁇ . The results are shown in Table 3.
- Example 25 The reaction was performed in the same manner as in Example 22 except that 155 mg of Nafion (registered trademark) was used instead of zeolite H ⁇ as a solid acid, and analysis was performed. The results are shown in Table 3.
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Abstract
Description
J.Am.Chem.Soc.K.M.Draths and J.W.Frost、1995、117,p.2395―2400 Tetrahedron Letters、Katsumi Kakinuma et. al,2000、41、p.1935―1938 J.Am.Chem.Soc.C.A.Hansen and J.W.Frost、2002、124,p.5926―5927 Carbohydrate Research A.Lubineau and I.Billault、1999、320,p.49―60
(1)上記のカテコールを製造する方法において、下記式(2)で表される2-デオキシ-scyllo-イノソースを脱水して(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造し、さらに水素化反応および脱水反応を行うことでカテコールを製造する方法。
(3)上記のカテコールを製造する方法において、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水素還元条件下、加熱しながら反応させることによりカテコールを製造する方法。
(4)上記のカテコールを製造する方法において、2-デオキシ-scyllo-イノソースを脱水して(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造し、さらに水素還元条件下、加熱しながら反応させることによりカテコールを製造する方法。
(5)上記のカテコールを製造する方法において、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを金属触媒存在下反応させることによりカテコールを製造する方法。
(6)上記のカテコールを製造する方法において、金属触媒が白金属金属からなる群または鉄族金属からなる群から選択される金属を含む、カテコールを製造する方法。
(7)上記のカテコールを製造する方法において、金属触媒がパラジウムを含む、カテコールを製造する方法。
(8)上記のカテコールを製造する方法において、金属触媒に含まれる金属成分が活性炭、アルミナまたはゼオライトに担持されている、カテコールを製造する方法。
(9)上記のカテコールを製造する方法において、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水溶液中反応させることによりカテコールを製造する方法。
(10)上記のカテコールを製造する方法において、2-デオキシ-scyllo-イノソースからワンポットでカテコールを製造する方法。
(11)上記のカテコールを製造する方法において、固体酸の存在下、2-デオキシ-scyllo-イノソースからカテコールを製造する方法。
(12)上記のカテコールを製造する方法において、固体酸がゼオライト、活性白土及びナフィオン(登録商標)からなる群から選択される、カテコールを製造する方法。
(13)上記のカテコールを製造する方法において、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水素で還元し、下記式(3)で表される(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを製造し、脱水反応させることでカテコールを製造する方法。
本実施形態は、下記式(1)で表される(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンからカテコールを製造する方法である。
(第2の実施形態)
本実施形態は、2-デオキシ-scyllo-イノソースを加熱しながら脱水して(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンとした後、金属触媒存在下、水素で還元して下記式(3)で表される(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンとしたのち、さらに加熱しながら脱水することでカテコールを製造する方法である。本実施形態の方法は、式(7)で示す反応によりカテコールを製造する。
(工程1)2-デオキシ-scyllo-イノソースから(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造する工程、
(工程2)(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンから(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを製造する工程。
(工程3)(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンからカテコールを製造する工程。
工程1は、2-デオキシ-scyllo-イノソースを脱水して、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造する工程である。
工程2は、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを金属触媒存在下水素で還元し、(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを製造する工程である。
工程3は、(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを加熱しながら脱水反応させることでカテコールを製造する工程である。
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを0.5N酢酸3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C(パラジウム/活性炭)3mg(50重量%含水)を仕込み、反応器を窒素で置換した。0.35MPaの水素圧をかけ撹拌しながら100℃に加熱し、水素添加反応を19時間行った。冷却後、窒素置換し、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率56%で得られた。
HPLC分析条件;10mM酢酸水溶液/アセトニトリル=94/6、1.2mL/min.、UV=220nm、使用カラム ODS-AQ、内標 没食子酸メチル
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを水3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C3mg(50重量%含水)を仕込み、反応器を窒素で置換した。0.1MPaの水素圧をかけ撹拌しながら170℃に加熱し、水素添加反応を行った。反応途中、反応溶液を採取し、HPLCを用いて分析したところ、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンの存在を確認した。合計4時間反応し、冷却後、窒素置換し、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率23%で得られた。分析条件は実施例1と同様に行った。
<2-デオキシ-scyllo-イノソースから(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース1.64gとイオン交換樹脂IR120B5mLを水13.6mL中に加え、20時間加熱還流した。反応終了後イオン交換樹脂をろ別し、ろ液を減圧濃縮した。濃縮残渣をシリカゲルカラム(酢酸エチル)で精製し、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを604mg(収率41%)得た。
1H-NMR(CD3OD);δ6.91(dd,1H,J=2.3,11.5Hz),6.02(dd,1H,J=2.7,11.5Hz),4.35(dt,J=2.3,8.2Hz),3.57(dd,1H,J=8.2,11.5Hz)
13C-NMR(CD3OD);δ200.18,153.32,127.51,79.93,78.12,73.06
<(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンから(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンの合成>
実施例3で得られた(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オン 205mgをメタノール3.5mLに溶解した。5重量%Pd/C20mg(50重量%含水)を加え、室温(25℃)で常圧(1気圧)水素添加を行った。反応終了後、触媒をろ別し、ろ液を濃縮し、(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを198mg(収率96%)得た。
1H-NMR(DMSO);δ5.21(d,1H,OH),4.91(d,1H,OH),4.87(d,1H,OH),3.88(m,1H),3.63(m,1H),3.07(m,1H),2.48(m,1H),2.14(m,1H),1.33(m,1H)
<(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンからカテコールの合成>
実施例4で得られた(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オン29.2mgを33w/v%リン酸水溶液1mLに溶解し、100℃で2時間加熱した。HPLCを用いて定量分析を行った結果、カテコールが収率86%で得られた。HPLC分析条件;10mM酢酸水溶液/アセトニトリル=94/6、1.2mL/min.、UV=220nm、使用カラム ODS-AQ、内標 没食子酸メチル
<2-デオキシ-scyllo-イノソースから(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース0.15gを0.5N酢酸水1.35mL中に加え、120℃で1時間加熱した。反応終了後HPLCを用いて定量分析を行った結果、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンが収率33%で得られた。このとき44%の原料2-デオキシ-scyllo-イノソースが回収された。HPLC分析条件;10mM酢酸水溶液/アセトニトリル=94/6、1.2mL/min.、UV=220nm、使用カラム ODS-AQ、内標 没食子酸メチル
<2-デオキシ-scyllo-イノソースから(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース0.05gを5N酢酸水1mL中に加え100℃で2時間加熱した。反応終了後HPLCを用いて定量分析を行った結果、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンが収率48%で得られた。このとき35%の原料2-デオキシ-scyllo-イノソースが回収された。HPLC分析条件;10mM酢酸水溶液/アセトニトリル=94/6、1.2mL/min.、UV=220nm、使用カラム ODS-AQ、内標 没食子酸メチル
<2-デオキシ-scyllo-イノソースから(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース0.5gとシリカゲル(メルク社製キーゼルゲル60)100mgを水1mL中に加え150℃で2時間加熱した。反応終了後HPLCを用いて定量分析を行った結果、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンが収率50%で得られた。このとき15%の原料2-デオキシ-scyllo-イノソースが回収された。HPLC分析条件;10mM酢酸水溶液/アセトニトリル=94/6、1.2mL/min.、UV=220nm、使用カラム ODS-AQ、内標 没食子酸メチル
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを水3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C7mg(50重量%含水)を仕込み、反応器を窒素で置換した。0.3MPaの水素圧をかけ撹拌しながら130℃に加熱し、水素添加反応を3時間行った。冷却後、窒素置換し、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率29%で得られた。分析条件は実施例1と同様に行った。
<2-デオキシ-scyllo-イノソースからカテコールの合成>
実施例9で用いた5重量%Pd/Cの代わりに、表1に示す触媒を用い、さらに表1に示す反応温度、反応時間とした以外は実施例9と全く同様に反応を行い、分析を行った。カテコール収率と併せて表1に示す。
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを水3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C1.8mg(50重量%含水)を仕込み、反応器を窒素で置換した。0.3MPaの水素圧をかけ撹拌しながら130℃に加熱し、水素添加反応を3時間行った。冷却後、窒素置換し、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率39%で得られた。分析条件は実施例1と同様に行った。
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを水3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C1.5mg(50重量%含水)および硫酸155mgを仕込み、反応器を窒素で置換した。0.3MPaの水素圧をかけ撹拌しながら70℃に加熱し、水素添加反応を10時間行った。冷却後、窒素置換し、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率41%で得られた。分析条件は実施例1と同様に行った。
実施例18で用いた硫酸の代わりに、表2に示す酸を用い、反応温度を90℃とした以外は実施例18と全く同様に反応を行い、分析を行った。カテコール収率と併せて表2に示す。
<2-デオキシ-scyllo-イノソースからカテコールの合成>
国際公開第2006/112000号パンフレット記載の方法により合成した2-デオキシ-scyllo-イノソース150mgを水3mLに溶解し、オートクレーブ中に仕込んだ。さらに5重量%Pd/C1.6mg(50重量%含水)およびゼオライトHβ(NEケムキャット(株))152mgを仕込み、反応器を窒素で置換した。0.3MPaの水素圧をかけ撹拌しながら130℃に加熱し、水素添加反応を10時間行った。冷却後、窒素置換した後、再度170℃に加熱し、2時間攪拌した。冷却後、HPLCを用いて定量分析を行った。その結果、原料が消失し、カテコールが収率57%で得られた。分析条件は実施例1と同様に行った。
固体酸として、ゼオライトHβの代わりに、ゼオライトHZSM5(NEケムキャット(株))155mgを用いた以外は、実施例22と全く同様に反応を行い、分析を行った。結果を表3に示す。
固体酸として、ゼオライトHβの代わりに、活性白土(和光純薬工業(株))153mgを用いた以外は、実施例22と全く同様に反応を行い、分析を行った。結果を表3に示す。
固体酸として、ゼオライトHβの代わりに、ナフィオン(登録商標)155mgを用いた以外は、実施例22と全く同様に反応を行い、分析を行った。結果を表3に示す。
Claims (20)
- 請求項1または2に記載のカテコールを製造する方法において、
2-デオキシ-scyllo-イノソースを水素還元条件下加熱しながら反応させることにより(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを経由してカテコールを製造する方法。 - 請求項1乃至3いずれかに記載のカテコールを製造する方法において、
(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水素還元条件下、加熱しながら反応させることによりカテコールを製造する方法。 - 請求項1乃至4いずれかに記載のカテコールを製造する方法において、
2-デオキシ-scyllo-イノソースを脱水して(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造し、さらに水素還元条件下、加熱しながら反応させることによりカテコールを製造する方法。 - 請求項1乃至5いずれかに記載のカテコールを製造する方法において、
(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを金属触媒存在下反応させることによりカテコールを製造する方法。 - 請求項6に記載のカテコールを製造する方法において、
前記金属触媒が白金属金属からなる群または鉄族金属からなる群から選択される金属を含む、カテコールを製造する方法。 - 請求項7に記載のカテコールを製造する方法において、
前記金属触媒がパラジウムを含む、カテコールを製造する方法。 - 請求項6乃至8いずれかに記載のカテコールを製造する方法において、
前記金属触媒に含まれる金属成分が活性炭、アルミナまたはゼオライトに担持されている、カテコールを製造する方法。 - 請求項1乃至9いずれかに記載のカテコールを製造する方法において、
(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水溶液中反応させることによりカテコールを製造する方法。 - 請求項1乃至10いずれかに記載のカテコールを製造する方法において、
2-デオキシ-scyllo-イノソースからワンポットでカテコールを製造する方法。 - 請求項11に記載のカテコールを製造する方法において、
固体酸の存在下、2-デオキシ-scyllo-イノソースからカテコールを製造する方法。 - 請求項12に記載のカテコールを製造する方法において、
前記固体酸がゼオライト、活性白土及びナフィオン(登録商標)からなる群から選択される、カテコールを製造する方法。 - 請求項14に記載のカテコールを製造する方法において、
2-デオキシ-scyllo-イノソースを加熱しながら脱水して(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンとした後、金属触媒存在下、水素で還元して(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンとしたのち、さらに加熱しながら脱水することでカテコールを製造する方法。 - 2-デオキシ-scyllo-イノソースを脱水して、(4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを製造する方法。
- (4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オン。
- (2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを加熱しながら脱水反応させることでカテコールを製造する方法。
- (4S,5R,6S)-4,5,6-トリヒドロキシ-2-シクロヘキセン-1-オンを水素で還元し、
(2S,3R,4S)-2,3,4-トリヒドロキシシクロヘキサン-1-オンを製造する方法。
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CN2009801126697A CN101990528B (zh) | 2008-04-11 | 2009-04-07 | 儿茶酚的制备方法 |
BRPI0909009A BRPI0909009A2 (pt) | 2008-04-11 | 2009-04-07 | método para produzir catecol |
EP09731392.8A EP2266940A4 (en) | 2008-04-11 | 2009-04-07 | PROCESS FOR THE PREPARATION OF CATECHOL |
KR1020107022409A KR101230198B1 (ko) | 2008-04-11 | 2009-04-07 | 카테콜의 제조 방법 |
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WO2010125807A1 (ja) * | 2009-04-28 | 2010-11-04 | 三井化学株式会社 | 多価フェノールを製造する方法 |
JP2020065494A (ja) * | 2018-10-25 | 2020-04-30 | 株式会社Ihiプラントエンジニアリング | トリヒドロキシベンゼンを製造するためのシステム |
WO2021251248A1 (ja) * | 2020-06-12 | 2021-12-16 | エヌ・イーケムキャット株式会社 | 水素化分解触媒及び炭素-ヘテロ原子結合を水素化分解し、生成有機化合物を製造する方法 |
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Cited By (6)
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WO2010125807A1 (ja) * | 2009-04-28 | 2010-11-04 | 三井化学株式会社 | 多価フェノールを製造する方法 |
US8604253B2 (en) | 2009-04-28 | 2013-12-10 | Mitsui Chemicals, Inc. | Method for producing polyhydric phenol |
JP2020065494A (ja) * | 2018-10-25 | 2020-04-30 | 株式会社Ihiプラントエンジニアリング | トリヒドロキシベンゼンを製造するためのシステム |
WO2020085436A1 (ja) * | 2018-10-25 | 2020-04-30 | 株式会社Ihi | トリヒドロキシベンゼンを製造するためのシステム |
JP7260872B2 (ja) | 2018-10-25 | 2023-04-19 | 株式会社Ihi | トリヒドロキシベンゼンを製造するためのシステム |
WO2021251248A1 (ja) * | 2020-06-12 | 2021-12-16 | エヌ・イーケムキャット株式会社 | 水素化分解触媒及び炭素-ヘテロ原子結合を水素化分解し、生成有機化合物を製造する方法 |
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KR20100120719A (ko) | 2010-11-16 |
CN101990528B (zh) | 2013-07-31 |
BRPI0909009A2 (pt) | 2015-09-22 |
EP2266940A1 (en) | 2010-12-29 |
CN101990528A (zh) | 2011-03-23 |
EP2266940A4 (en) | 2014-10-29 |
JP5433568B2 (ja) | 2014-03-05 |
US20110034735A1 (en) | 2011-02-10 |
KR101230198B1 (ko) | 2013-02-06 |
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US8378146B2 (en) | 2013-02-19 |
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