WO2008069127A1 - シクロアルカンの酸化生成物の製造方法 - Google Patents
シクロアルカンの酸化生成物の製造方法 Download PDFInfo
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- WO2008069127A1 WO2008069127A1 PCT/JP2007/073176 JP2007073176W WO2008069127A1 WO 2008069127 A1 WO2008069127 A1 WO 2008069127A1 JP 2007073176 W JP2007073176 W JP 2007073176W WO 2008069127 A1 WO2008069127 A1 WO 2008069127A1
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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
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0245—Nitrogen containing compounds being derivatives of carboxylic or carbonic acids
- B01J31/0247—Imides, amides or imidates (R-C=NR(OR))
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/48—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
- C07C29/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C407/00—Preparation of peroxy compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C409/00—Peroxy compounds
- C07C409/02—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides
- C07C409/14—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides the carbon atom belonging to a ring other than a six-membered aromatic ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/70—Oxidation reactions, e.g. epoxidation, (di)hydroxylation, dehydrogenation and analogues
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/90—Catalytic systems characterized by the solvent or solvent system used
- B01J2531/98—Phase-transfer catalysis in a mixed solvent system containing at least 2 immiscible solvents or solvent phases
- B01J2531/985—Phase-transfer catalysis in a mixed solvent system containing at least 2 immiscible solvents or solvent phases in a water / organic solvent system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention relates to a method for producing an oxidation reaction product of cycloalkane.
- Cycloalkane is useful as a raw material for producing cycloalkyl hydroperoxide, cycloalkanol and cloalkanone, which are oxidation products of cycloalkane, and cycloalkanol as a raw material for producing cycloalkanone.
- Cycloalkanols and cycloalkanones are useful as raw materials for producing polymer compounds such as polyamide polymer compounds and intermediate materials for fine chemicals.
- the oxidation product of cycloalkane is obtained by oxidizing cycloalkane in the presence of an imide compound having a cyclic imide skeleton (cyclic imide compound) without using a cobalt compound.
- a method for obtaining this has been proposed (see Japanese Patent Application Laid-Open No. 2003-128602). According to this method, the oxidation product of cycloalkane can be produced with high selectivity.
- the reaction for converting cycloalkyl hydroperoxide to cycloalkanone and cycloalkanol is one of industrially useful reactions.
- KA oil cyclohexane by oxygen oxidation of cyclohexane
- This reaction is usually carried out by mixing a cycloalkyl hydroperoxide-containing liquid with a transition metal catalyst and / or an alkaline aqueous solution, and various methods have been reported so far.
- JP-A-7-247230 alkane and / or alkene is oxidized with oxygen to produce alkyl hydroperoxide, and the produced alkyl hydroperoxide is fixed on a support material.
- a cycloalkyl hydroperoxide is decomposed in the presence of an aqueous phase containing an alkali metal hydroxide and an alkali metal salt to produce a cycloalkanone and / or a cycloalkanol.
- a method is disclosed.
- JP-A-2004-59515 a liquid containing a cycloalkyl hydroperoxide is mixed with a transition metal hydroxide and an aqueous alkali solution to convert the cycloalkyl hydroperoxide into a cycloalkanone and a cycloalkanol.
- a method is disclosed.
- Japanese Patent Application Laid-Open No. 2004-59541 discloses that a liquid containing cycloalkyl hydroperoxide is mixed with an N-hydroxy cyclic imide, a cobalt compound, and an aqueous alkali solution to convert the cycloalkyl hydroperoxide into a cycloalkanone and Methods for conversion to cycloalkanols are disclosed.
- cycloalkanone is high in the decomposition reaction of cycloalkyl hydroperoxide.
- the production ratio of cycloalkanone to cycloalanol is at most 1.5 at the lowest.
- sodium hydroxide is used in order to increase the decomposition rate of cycloalkyl hydroperoxide. It decomposes cycloalkyl hydroperoxide in the presence of strong alkaline aqueous solution such as aqueous solution of lithium.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9 143109
- Patent Document 2 Japanese Patent Laid-Open No. 2003-128602
- Patent Document 3 Japanese Patent Laid-Open No. 7-247230
- Patent Document 4 JP-A-9 194408
- Patent Document 5 Japanese Patent Application Laid-Open No. 2004-59515
- Patent Document 6 Japanese Unexamined Patent Application Publication No. 2004-59541
- Patent Document 7 Patent No. 3426213
- the object of the present invention is to produce a useful oxidation product of cycloalkane corresponding to cycloalkyl hydroperoxide, cycloalkanol, and cycloalkanone, and particularly a highly useful cycloalkanone with high selectivity. Therefore, an object of the present invention is to provide a method that can be produced at a low cost and in an industrially efficient manner, with an advantage in terms of energy and process. Means for solving the problem
- the present inventors include a peroxide decomposition step, a hydrolysis step, and a water washing step after the completion of the oxidation reaction until the purification step. Attention was paid to the fact that an organic phase and an aqueous phase extraction process are always included in this case, and a method of using water as a solvent was examined.
- cyclic imide compounds a compound having high solubility in water is selected and used as a catalyst, and when the reaction is carried out in a liquid-liquid two-phase system using water as a solvent, the catalyst The oxidation reaction proceeds smoothly without losing the function of the catalyst as it is easily supplied to the reaction system, and the desired oxidation reaction product is produced in a high yield. And reaction students It was found that the product can be easily separated from the product, and is more energy- and process-friendly than when an organic solvent is used, so that an oxidation product of cycloalkane can be produced efficiently.
- An aqueous solvent is used in the presence of a nitrogen atom-containing cyclic compound containing a skeleton represented by formula (1) as a ring component and having a solubility in water of 0.5 g / 100 g-HO or more at 25 ° C.
- the present invention provides a process for producing an oxidation product of cycloalkane, characterized in that cycloalkane is oxidized in a liquid-liquid two-phase system to obtain an oxidation product of cycloalkane.
- N hydroxysuccinimide is used as the nitrogen atom-containing cyclic compound.
- the alkaline aqueous solution is preferably an aqueous solution containing a compound selected from alkali metal carbonates and alkaline earth metal carbonates.
- cycloalkane is a liquid-liquid two-phase system that uses a nitrogen atom-containing cyclic compound having a high solubility in water and a specific skeleton as a catalyst, and that uses an aqueous solvent.
- the catalyst is oxidized, it is easy to supply the catalyst to the reaction system, the catalyst function is fully exerted, the oxidation reaction proceeds smoothly, and the desired oxidation reaction product is produced in good yield and the reaction is performed.
- cycloalkane (hereinafter sometimes simply referred to as “substrate”) is used as a raw material compound.
- Examples of the cycloalkane include cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclononane, cyclodecane, cyclododecane, cyclotetradecane, cyclohexadecane, cyclotadecane, cycloicosane, Examples include cycloalkanes of about 3 to 30 members such as cyclodosan and cyclotriacontane.
- cycloalkanes having about 4 to 20 members (for example, about 5 to 16 members) such as cyclopentane, cyclohexane, cyclooctane, and cyclododecane are preferable.
- the cycloalkane does not inhibit the reaction! /, Has a substituent in the range! /, May! /.
- substituents include halogen atoms, oxo groups, hydroxyl groups, mercapto groups, substituted oxy groups (for example, alkoxy groups, aryloxy groups, and acyloxy groups), substituted Thio group, carboxyl group, substituted oxycarbonyl group, substituted or unsubstituted rubamoinole group, cyano group, nitro group, substituted or unsubstituted amino group, alkyl group (e.g., methyl, ethyl, isopropyl, t-butyl, C alkyl group such as xyl, octyl, decyl group, etc.
- alkyl group e.g., methyl, ethyl, isopropyl, t-butyl, C alkyl group such as xyl,
- Examples include nolekenyl group, aryl group (for example, phenyl, naphthyl group, etc.), aralkyl group (for example, benzyl group, etc.), heterocyclic group and the like.
- oxygen can be used as the oxidizing agent.
- molecular oxygen can be preferably used.
- Molecular oxygen is not particularly limited, and pure oxygen may be used, or oxygen diluted with an inert gas such as nitrogen, helium, argon, carbon dioxide, or air may be used.
- oxygen-containing gas for example, oxygen-nitrogen mixed gas
- the oxygen concentration in the oxygen-containing gas is, for example, about 3 to 95% by volume, preferably about 5 to 83% by volume.
- Oxygen may be generated in the system. The amount of oxygen used varies depending on the type of substrate.
- 0.5 mol or more for example, 1 mol or more
- an excess of oxygen is used relative to the substrate.
- the catalyst is a nitrogen atom-containing cyclic compound containing the skeleton represented by the formula (I) as a ring component, and has a solubility in water of 0.5 g / 100 g- Use a compound that is at least HO.
- a compound that is at least HO When such a compound is used as a catalyst, it can be supplied to the reaction system in the form of a solution dissolved in water, so that it is excellent in operability and workability, and the liquid-liquid two-phase system of cycloalkane in an aqueous solvent is used.
- the oxidation reaction it functions effectively as a catalyst, the oxidation reaction proceeds smoothly, and the desired oxidation product is produced in good yield.
- a nitrogen atom-containing cyclic compound containing the skeleton represented by formula (I) as a ring component has a solubility in water of less than 0.5 g / 100 g-HO at 25 ° C.
- a compound is used as a catalyst, it is poorly soluble in both the substrate and water, so the reaction system becomes heterogeneous and the catalytic function is not fully exhibited, and the desired oxidation reaction product can be obtained in high yield.
- I can't.
- the bond between the nitrogen atom and X is a single bond or a double bond.
- the nitrogen atom-containing cyclic compound may have a plurality of skeletons represented by the formula (I) in the molecule.
- this nitrogen atom-containing cyclic compound has a skeleton represented by the formula (I) when X is an —OR group and a protecting group for R force S-hydroxyl group (provided that X is an —OR group). There are a number of parts except R, which are connected via R!
- hydroxyl-protecting group represented by R a hydroxyl-protecting group commonly used in the field of organic synthesis can be used.
- protecting groups include alkyl groups (eg, C alkyl groups such as methyl and t-butyl groups), alkenyl groups (eg
- an aryl group e.g, an aryl group
- a cycloalkyl group e.g, a cyclohexyl group
- an aryl group e.g, an aryl group
- aralkyl group eg, benzyl, 2,6-dichlorobenzyl, 3 bromobenzyl, 2 ditrobenzyl, triphenylmethyl group
- substituted methyl group eg, methoxymethyl, methylthio
- ethyl groups for example, 1 ethoxyethyl, 1-methyl-1-methoxyethyl, 1 isopropoxycetyl, 2,2,2-trichloroethyl, 2-methoxyethyl
- tetrahydrobiranyl tetrahydrofuranyl
- 1-hydroxyalkyl Groups such as 1-hydroxyethy
- Cycloalkanecarbonyl such as cyclopentanecarbonyl, cyclohexanecarbonyl, and other cycloaliphatic acyl groups; aromatic acyl such as benzoyl and naphthoyl groups), sulphoninore groups (methanesunorenonore, ethanesunorefo Ninore, Trifnoleolomethanesunohononole, Benzenesulfonyl, pToluenesulfonyl, Naphthalenesulfonyl group, etc.), Alkoxycarbonyl group (eg, methoxycarbonyl, ethoxycarbonyl, t-butoxycarbo C-alkoxycarbonyl groups such as nyl groups), aralkyloxycarbonyl groups (
- benzyloxycarbonyl group p-methoxybenzyloxycarbonyl group, etc.
- Substituted or non-substituted rubamoyl groups for example, rubamoyl, methylcarbamoyl, phenylcarbamoyl groups, etc.
- inorganic acids sulfuric acid, nitric acid, phosphoric acid, boric acid, etc.
- OH groups dialkylphosphinothio Oil group (eg, dimethylphosphinothioyl group), diarylphosphinothioyl group (eg, diphenylphosphinothioyl group), substituted silyl group (eg, trimethylsilyl, t-butyldimethylsilyl, tribenzylsilyl) And triphenylsilyl group).
- R for example, oxalyl
- Polycarboxylic acid acyl groups such as malonyl, succinyl, glutaryl, phthaloyl, isophthaloyl and terephthaloyl groups
- carbonyl groups polyvalent hydrocarbon groups such as methylene, ethylidene, isopropylidene, cyclopentylidene, cyclohexylidene and benzylidene groups ( In particular, a group that forms an acetal bond with two hydroxyl groups).
- R is, for example, a hydrogen atom; a group capable of forming a hydroxyl group and an acetal or hemiacetal group; an acid such as carboxylic acid, sulfonic acid, carbonic acid, strong rubamic acid, sulfuric acid, phosphoric acid or boric acid.
- Hydrolyzable protecting groups that can be removed by hydrolysis such as OH group-excluded groups (acyl group, sulfonyl group, alkoxycarbonyl group, strong rubermoyl group, etc.) are preferred.
- R is particularly preferably a hydrogen atom.
- the nitrogen atom-containing cyclic compound containing the skeleton represented by the formula (I) as a ring component includes a cyclic imide compound having a cyclic imide skeleton represented by the following formula (1).
- n 0 or 1;
- X is an oxygen atom or OR group (R is a hydrogen atom or hydroxy Represents a protecting group of the ru group.
- RR 2 , R 3 , R 4 , R 5 and R 6 are the same or different and are a hydrogen atom, halogen atom, alkyl group, aryl group, cycloalkyl group, hydroxyl group, alkoxy group, carboxyl group, substituted oxy group.
- a double bond or an aromatic or non-aromatic ring formed by bonding at least two of R 2 , R 3 , R 4 , R 5 and R 6 to each other has the following formula (a)
- the halogen atom includes iodine, bromine, chlorine and fluorine atoms.
- the alkyl group includes, for example, a linear or branched alkyl group having about 1 to 4 carbon atoms (particularly about 1 to 2 carbon atoms) such as methyl, ethyl, propyl, isopropyl and butyl groups.
- the aryl group includes a phenyl, tolyl group and the like
- the cycloalkyl group includes a cyclopentyl, a cyclohexyl group and the like.
- the alkoxy group includes, for example, an alkoxy group having about 1 to 4 carbon atoms (particularly, about carbon number;! To about 2) such as methoxy, ethoxy, isopropoxy, butoxy, and t-butoxy groups.
- the substituted oxycarbonyl group includes, for example, C such as methoxycarbonyl, ethoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, t-butoxycarbonyl group, etc.
- Oxycarbonyl, cyclohexyloxycarbonyl group * A carbonyl group; an aryloxycarbonyl group such as a phenylcarbonyl group; an aralkyloxycarbonyl group such as a benzyloxycarbonyl group; and the like.
- acyl group examples include aliphatic groups such as C aliphatic group such as formyl, acetyl, propionyl, butyryl, isobutylinole, and valeryl group (particularly, C aliphatic group).
- C aliphatic group such as formyl, acetyl, propionyl, butyryl, isobutylinole, and valeryl group (particularly, C aliphatic group).
- Examples thereof include saturated or unsaturated acyl groups; acetocetyl groups; alicyclic acyl groups such as cycloalkanecarbonyl groups such as cyclopentanecarbonyl and cyclohexanecarbonyl groups; aromatic acyl groups such as benzoyl groups.
- acyloxy group examples include C aliphatic acyl groups such as formyloxy, acetyloxy, propioninoreoxy, butyryloxy, isobutyryloxy, and valeryloxy groups.
- acylol such as noroxy group (especially C aliphatic acyloxy group)
- Acetoxyloxy group cyclopentanecarbonyloxy, cyclohexanecarbonyloxyl and other cycloalkanecarbonyloxy groups such as cycloalkanecarbonyloxy group; aromatic benzyloxy groups such as benzoyloxy group and the like It can be illustrated.
- R 2 , R 3 , R 4 , R 5 and R 6 may be the same or different. Further, in the above formula (1), at least two of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are bonded to each other, together with the carbon atom or carbon carbon bond constituting the cyclic imide skeleton May form a double bond, or an aromatic or non-aromatic ring.
- aromatic or non-aromatic rings are 5 to; 12-membered rings, especially 6 to 10-membered rings, which may be heterocycles or condensed heterocycles, but are hydrocarbon rings There are many cases.
- the ring has a substituent such as an alkyl group, a haloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, a substituted oxycarbonyl group, an acyl group, an acyloxy group, a nitro group, a cyano group, an amino group, and a halogen atom. May be.
- a substituent such as an alkyl group, a haloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, a substituted oxycarbonyl group, an acyl group, an acyloxy group, a nitro group, a cyano group, an amino group, and a halogen atom. May be.
- one or more cyclic imide groups represented by the formula (a) may be further formed in the non-aromatic ring.
- RR 2 , R 3 , R 4 , R 5 or R 6 is an alkyl group having 2 or more carbon atoms
- the cyclic imide group containing two adjacent carbon atoms constituting the alkyl group is It may be formed.
- At least two of R 2 , R 3 , R 4 , R 5 and R 6 are bonded to each other; When forming a double bond with the carbon carbon bond which comprises cyclic imide frame
- Preferred cyclic imide compounds include compounds represented by the following formula.
- R U to R LB are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryleno group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, a substituted oxycarbonyl group, Represents an acyl group or an acyloxy group, X is the same as above)
- the halogen atom, alkyl group, aryl group, cycloalkyl group, hydroxyl group, alkoxy group, carboxyl group, substituted oxycarbonyl group, acyl group, and acyloxy group are the above-mentioned! Examples similar to the corresponding group in ⁇ ⁇ are exemplified.
- Representative examples of the compound having a 5-membered cyclic imide skeleton among the preferable cyclic imide compounds include, for example, N-hydroxysuccinimide, N-hydroxy- ⁇ -methylsuccinimide, ⁇ -hydroxy- ⁇ , a-dimethylsuccinimide.
- N in formula (1) such as N-hydroxy- ⁇ , / 3-dimethyl succinimide, ⁇ hydroxymaleimide, a, / 3-diacetyloxy succinimide, and R is a hydrogen atom.
- R is a hydrogen atom.
- Representative examples of compounds having a 6-membered cyclic imide skeleton among the cyclic imide compounds include, for example, N hydroxyglutarimide, N hydroxy- ⁇ , a-dimethylskyolimide, N hydroxy-13, Examples include compounds in which X in the formula (1) is an OR group and R is a hydrogen atom, such as ⁇ -dimethyldaltalimide.
- a cyclic acylurea compound the following formula (2)
- R a and R d are the same or different and may be protected with a hydrogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group which may be protected with a protecting group, or a protecting group.
- R b are the same or different, and represent a hydrogen atom, a halogen atom, an anolenoquinol group, an aryleno group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, a substituted oxycarbonyl group.
- the alkyl group, aryl group, cycloalkyl group, and acyl group in RR d are as defined above. Examples similar to the alkyl group in ⁇ ⁇ are exemplified. Examples of the hydroxyl-protecting group include those described above.
- the protecting group for the carboxyl group may be a protecting group commonly used in the field of organic synthesis, for example, Lucoxy group (for example, C alkoxy group such as methoxy, ethoxy, butoxy, etc.), cyclo
- an alkyloxy group an aryloxy group (for example, a phenoxy group), an aralkyloxy group (for example, a benzyloxy group), a trialkylsilyloxy group (for example, a trimethylsilyloxy group), an amino group that may have a substituent (for example, Amino group; mono- or di-C alkylamino group such as methylamino group and dimethylamino group)
- halogen atom anolenoquinol group, aryleneol group, cycloalkyl group, hydroxynole group, alkoxy group, carboxyl group, substituted oxycarbonyl group, acyl group and acyloxy group in R b are as described above!
- alkyl group in ⁇ ⁇ examples similar to the alkyl group in ⁇ ⁇ are exemplified.
- R a , R b , and R d are bonded to each other to form a double atom together with the atoms (carbon atom and / or nitrogen atom) constituting the ring shown in the formula R b , which may form a bond, or an aromatic or non-aromatic ring, may together form an oxo group.
- atoms carbon atom and / or nitrogen atom
- R b which may form a bond
- an aromatic or non-aromatic ring may together form an oxo group.
- preferable aromatic or non-aromatic rings are the same as those described above.
- isocyanuric acid derivatives represented by the following formula (2a) are preferable.
- R,, and R ⁇ are the same or different and each represents a hydrogen atom or a hydroxyl protecting group
- a compound in which X is an -OR group and R is a hydrogen atom is based on a known method or a combination of known methods. Can be manufactured. Further, among the nitrogen atom-containing cyclic compounds, a compound in which X is an OR group and a protecting group for R force S hydroxyl group is protected by conventional protection to a compound in which R is a hydrogen atom (N hydroxy cyclic compound). It can be prepared by introducing a desired protecting group using a group introduction reaction.
- a compound in which X is an -OR group and R is a hydrogen atom is a conventional imidization reaction, for example, a corresponding acid. It can be obtained by a method in which an anhydride is reacted with hydroxylamine and imidized through ring-opening and ring-closing of an acid anhydride group.
- N-acetoxy succinimide can be obtained by reacting N-hydroxysuccinimide with acetic anhydride or by reacting acetyl nitride in the presence of a base. It is also possible to manufacture by other methods.
- a cyclic imide compound is derived from an aliphatic polycarboxylic acid anhydride (cyclic anhydride) or an aromatic polycarboxylic acid anhydride (cyclic anhydride) N Hydroxyimide compounds (for example, N-hydroxysuccinimide and the like); and compounds obtained by introducing a protecting group into the hydroxyl group of the N-hydroxyimide compound are included.
- the nitrogen atom-containing cyclic compound containing the skeleton represented by formula (I) as a ring component can be used alone or in combination of two or more in the reaction.
- a catalyst comprising a nitrogen atom-containing cyclic compound containing the skeleton represented by formula (I) as a ring component may be produced in the reaction system.
- the nitrogen-containing cyclic compound containing the skeleton represented by the formula (I) as a ring component and having a solubility in water of 25 ° C is 0.
- a compound that is 5 g / 100 g-HO or more is used as a catalyst.
- the solubility in water (25 ° C) is preferably 1. Og / 100 g-HO or more, more preferably 3.0 g / 100 g-HO or more, and particularly preferably 4 ⁇ Og / 100 g-HO or more. .
- the solubility of the catalyst used in the present invention in water The limit is not particularly limited, but is, for example, 100 g / 100 g—HO.
- N-hydroxysuccinimide is particularly preferable from the viewpoint of solubility in water and catalytic activity.
- the amount of the catalyst used can be selected in a wide range, for example, from about 0.001 to about 100 mol% (0.000 to 100 mol%) with respect to 1 mol of the substrate.
- the amount of imide compound used is the substrate 1 in consideration of economy and post-treatment. moles, preferably 0 - 000001-0. 0 1 Monore (0.1 0001 ⁇ ;! Monore 0/0) or so, more preferably 0.5 00001-0. 005 Monore (0. 001-0. 5 mol 0/0) is about.
- the concentration of the catalyst in the reaction system is, for example, about 0.005 to 5% by weight, preferably about 0.02 to 0.6% by weight, based on the entire reaction solution.
- the amount of the catalyst used is, for example, about 0.5 to 50% by weight, preferably about 1 to 20% by weight, based on the amount of water in the reaction system.
- the reaction may be performed in the presence of a transition metal compound such as a cobalt compound, but the presence of the transition metal compound facilitates the decomposition of the reaction product, and depending on the application. Since the transition metal may have an adverse effect, a transition metal removal step may be required, so the lower concentration of the transition metal compound in the reaction system is preferable.
- a transition metal compound such as a cobalt compound
- the concentration of cobalt compound is preferably 0.0001 ppm by weight or less (particularly 0.0001 ppm by weight or less) as a metal.
- the concentrations of other transition metal compounds are also as metals. It is preferably 0.0001 ppm by weight or less (particularly 0.00001 ppm by weight or less).
- Transition metal compounds include compounds (including simple substances) of Group 3 to Group 12 elements (V, Mo, Mn, Fe, Ru, Co, Cu, etc.) of the periodic table.
- the cycloalkane oxidation reaction is carried out in a liquid-liquid two-phase system using an aqueous solvent.
- the catalyst can be supplied to the reaction system in a form dissolved in water. Since the catalyst is dissolved in the solvent in the system, the catalyst function is sufficiently exerted and the reaction proceeds smoothly. After completion of the reaction, an organic layer and an aqueous layer composed of an oxidation product and unreacted cycloalkane. However, since the catalyst is distributed to the aqueous layer, it is possible to easily separate the catalyst from the oxidation product and unreacted cycloalkane.
- aqueous solvent only water may be used, but if necessary, a solvent in which water and a small amount of a water-soluble organic solvent are combined may be used.
- water-soluble organic solvent are water-soluble and do not adversely influence the reaction! /
- water-soluble organic solvent include acetonitrile.
- the amount of the aqueous solvent used is, for example, 0.5 to 20 parts by weight, preferably 0.5 to 10 parts by weight, and more preferably 100 parts by weight of cycloalkane used as a raw material. Is 0.5-8 parts by weight. If the amount of water is too large, the catalyst concentration decreases and the reaction rate tends to decrease. The amount of water may be an amount necessary and sufficient to dissolve the necessary amount of catalyst.
- an additive may be added to the reaction system in order to improve the reaction rate and reaction selectivity.
- the additive include organic acids (carboxylic acids such as valeric acid, sulfonic acids, etc.), protic organic compounds such as alcohols, and nitriles such as benzonitrile.
- the addition amount is, for example, about 0.0001 to; monolayer, preferably about 0.001 to 0.1 mol, with respect to the cycloalkanone monolayer as the substrate.
- an inorganic acid for example, nitric acid
- nitric acid may be added as an additive.
- the reaction temperature is usually 80 ° C or higher (eg, 80 to 180 ° C), preferably 130 to 170 ° C, more preferably about 135 to 155 ° C. If the reaction temperature is too low, the reaction rate decreases, and if the reaction temperature is too high, oxidative cleavage products (dicarboxylic acid, etc.) are by-produced to produce the desired compound (cycloalkyl hydroperoxide, cycloalkanol, cyclohexane). Alkanone; The selectivity of the cyclic oxidation product) tends to decrease.
- the reaction pressure may be any of reduced pressure, normal pressure, and increased pressure.
- the reaction pressure is, for example, about 0.;! To about 20 MPa, preferably about 1 to 6 MPa.
- the oxygen partial pressure varies depending on the amount of the catalyst and the like. Generally, the oxygen partial pressure is about 0 .;! To 20 MPa, preferably about 5 MPa.
- the reaction time (liquid residence time in the case of a continuous system) varies depending on other reaction conditions, for example, 20 minutes to 5 hours, preferably about 45 minutes to 2 hours.
- the reaction can be carried out by a conventional method such as a batch system, a semi-batch system, or a continuous system in the presence of oxygen or in the circulation of oxygen.
- a conventional method such as a batch system, a semi-batch system, or a continuous system in the presence of oxygen or in the circulation of oxygen.
- good results can be obtained, for example, by setting the initial concentration of cycloalkane to 80% by weight or more, preferably 90% by weight or more, particularly 95% by weight or more. It is done.
- the total concentration of cycloalkane and its oxidation product in the steady state should be set to 80% by weight or more, preferably 90% by weight or more, particularly 95% by weight or more). By this, it is possible to obtain a good yield of a compound with good yield.
- reaction product can be separated and purified by separation means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination means combining these.
- separation means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination means combining these.
- the carbon atom constituting the cycloalkane ring of the cycloalkane used as a raw material is oxidized, and the corresponding cycloalkyl hydroperoxide, cycloalkanol and cycloalkanone force are selected. Oxidation products (cyclic oxidation products) are produced.
- cyclopentane when cyclopentane is used as a raw material, cyclopentyl hydroperoxide and / or cyclopentanol and / or cyclopentanone is generated, and when cyclohexane is used as a raw material, Cyclohexyl hydroperoxide and / or cyclohexanol and / or cyclohexanone are formed. Depending on the conditions, oxidative cleavage products such as dartaric acid and adipic acid are by-produced. In the method of the present invention, cycloalkanone can be obtained with a relatively high selectivity.
- nitrogen containing cycloalkenohydrohydroperoxide contained in the oxidation product of cycloalkane as a ring constituent with the skeleton represented by the above formula (I) It is preferable to mix with an alkaline aqueous solution having a pH of 1 or less in the presence of an atom-containing cyclic compound to decompose the cycloalkyl hydroperoxide and convert it into a cycloalkanone and a cycloalkanol.
- the cycloalkanone / cycloalkanol production ratio in the oxidation product of cycloalkane can be remarkably improved.
- the cycloalkyl hydroperoxide produced by the oxidation of the cycloalkane include, for example, a cycloalkyl hydroperoxide having 5 to 20 carbon atoms, preferably 5 to 1 carbon atoms.
- Representative cycloalkyl hydroperoxides include, for example, cyclopentyl hydroperoxide, cyclohexenorehydropenoxide, cycloheptinorehydropenoxide, cyclooctyl hydroperoxide, cyclononyl hydroperoxide, cyclodecyl hydride Examples include peroxide, cyclododecyl hydroperoxide, cyclopentadecyl hydroperoxide, cyclohexadecyl hydroperoxide, and the like. These can be used alone or in combination of two or more.
- liquid containing cycloalkyl hydroperoxide one having a cycloalkyl hydroperoxide concentration of about 0.;! To 20% by weight is usually used.
- a solution obtained by dissolving cycloalkyl hydroperoxide in an organic solvent eg, aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, etc.
- an organic solvent eg, aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, etc.
- the cycloalkane obtained by oxidizing the corresponding cycloalkane for example, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclononane, cyclodecane, cyclododecane, cyclopentadecane, cyclohexadecane, etc.
- cycloalkane for example, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclononane, cyclodecane, cyclododecane, cyclopentadecane, cyclohexadecane, etc.
- the oxidation method of cycloalkane include a liquid phase catalytic oxidation method, for example, an oxidation method using a transition metal compound such as a cobalt compound as
- the above formula (I) An oxidation method using as a catalyst a nitrogen atom-containing cyclic compound containing a skeleton represented by formula (1) as a ring component.
- the nitrogen atom-containing cyclic compound is also used as a catalyst for the decomposition of cycloalkyl hydroperoxide, cycloalkane is used as the nitrogen atom-containing cyclic compound as the cycloalkyl hydroperoxide-containing liquid.
- Reaction mixture obtained by oxidation in the presence of an organic phase in the case of separation into an organic phase and an aqueous phase, an organic phase; this reaction mixture is subjected to appropriate treatment such as washing, extraction, liquid separation, dilution, concentration, etc.) (Including a mixed solution obtained by application) can be preferably used.
- the cycloalkyl hydroperoxide is usually contained in the mixed liquid.
- the oxide contains unreacted cycloalkanes and oxidation products such as cycloalkanones, cycloalkanols, carboxylic acids, and esters.
- cycloalkanones cycloalkanones
- cycloalkanols carboxylic acids, and esters.
- These solutions can be used to decompose cycloalkyl hydroperoxide. After that, it can be separated and recovered, and at that time, it can be separated and recovered together with the cycloalkane or cycloalkanone contained in the mixed solution.
- the same catalyst as that used in the cycloalkane oxidation reaction that is, a nitrogen atom-containing cyclic compound
- a nitrogen atom-containing cyclic compound that is, a nitrogen atom-containing cyclic compound
- the cycloalkanone / cycloalkanol production ratio is greatly improved.
- the production ratio (molar ratio) is usually 2.0 or more, and a high value of 5.0 or more can be obtained.
- the amount of the nitrogen atom-containing cyclic compound used is, for example, usually 0.;! To 100 ppm by weight, preferably 1 to 50 ppm by weight, based on the cycloalkyl hydroperoxide-containing liquid. Preferably, it is 5 to 30 ppm by weight.
- the nitrogen atom-containing cyclic compound is already contained in the mixed liquid. In this case, it is preferable that the sum of the amount of the nitrogen atom-containing cyclic compound and the amount of the nitrogen atom-containing cyclic compound added newly falls within the above range.
- a transition metal compound may be added to the system in order to accelerate the decomposition reaction of cycloalkyl hydroperoxide.
- transition metal compounds include halides, organic acid salts, and oxoacids of transition metals [Group 3 to Group 12 elements (V, Mo, Mn, Fe, Ru, Co, Cu, etc.)] Examples include salts and complexes. More specifically, taking a manganese compound as an example, mangan chloride, manganese bromide, manganese acetate, manganese octylate, manganese naphthenate, manganese sulfate, manganese nitrate, manganese acetyl cetate and the like are exemplified. .
- a manganese compound is particularly preferable among manganese compounds and cobalt compounds.
- the amount of the transition metal compound used is usually from 0.001 to 10 ppm by weight, preferably from 0.01 to 10 ppm by weight, more preferably from 0 to 100 ppm by weight relative to the cycloalkyl hydroperoxide-containing liquid. ⁇ 05—0.2 ppm by weight.
- alkaline aqueous solution having a pH of 12 or less can be prepared by dissolving an alkaline substance in water.
- Alkaline metal compounds other than alkali metal hydroxides and alkaline earth metal compounds are preferred as alkaline substances, for example, alkali metal carbonates such as sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate; calcium carbonate Examples include alkaline earth metal carbonates such as magnesium carbonate. These may be used alone or in combination of two or more.
- the concentration of the alkaline substance in the alkaline aqueous solution having a pH of 12 or lower is usually;! To 50% by weight, preferably 3 to 30% by weight, and more preferably 5 to 25% by weight.
- the pH of the alkaline aqueous solution may be 12 or less and a value greater than 7, but is preferably 7.5 to 12, more preferably 8.5 to 12, particularly preferably 9.5 to 12;
- the mixing ratio of the alkaline aqueous solution having a pH of 12 or less is usually from 0.;! To 30% by weight with respect to the cycloalkyl hydroperoxide-containing solution.
- acids and esters are contained in the liquid containing cycloalkyl hydroperoxide, the amount consumed by these is taken into account, and the acid and ester are usually treated as an alkali. It is desirable to mix 5 to 5 mole times, preferably 1 to 3 mole times alkaline aqueous solution.
- the temperature (reaction temperature) at which cycloalkyl hydroperoxide is decomposed by mixing a cycloalkyl hydroperoxide-containing liquid and an alkaline aqueous solution having a pH of 12 or less is usually 20 to 200 ° C, preferably Is from 50 to 160 ° C.
- the reaction pressure is usually 0. !! to 5 MPa.
- the reaction may be carried out by any system such as batch system, semi-batch system, and continuous system.
- the cycloalkyl hydroperoxide is converted into a cycloalkanone and a cycloalkanone.
- the reaction is carried out using an alkaline aqueous solution having a pH of 12 or less in the presence of a nitrogen atom-containing cyclic compound containing the skeleton represented by the formula (I) as a ring component, cycloalkanone / cycloalkanol formation
- the industrial value is extremely high because the ratio is very high and the oligomerization of cycloalkanone in the subsequent process can be prevented.
- the reaction product can be separated and purified by separation means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination means combining these. More specifically, for example, cycloalkanone and cycloalkanol can be obtained by subjecting the reaction mixture to oil-water separation and subjecting the resulting oil phase to distillation. The obtained aqueous phase can be recycled as an alkaline aqueous solution.
- separation means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination means combining these. More specifically, for example, cycloalkanone and cycloalkanol can be obtained by subjecting the reaction mixture to oil-water separation and subjecting the resulting oil phase to distillation. The obtained aqueous phase can be recycled as an alkaline aqueous solution.
- the oxidation product of cycloalkane obtained by the production method of the present invention is used as a raw material for polymers such as polyamide silon having a very high cycloalkanone production ratio, and as an intermediate raw material for fine chemicals. it can.
- An aromatic carboxylic acid can be produced by oxidizing an alkyl group-substituted aromatic compound or a low-order oxide thereof in a liquid-liquid two-phase system using an aqueous solvent in the presence of a product. Also in this case, since the reaction product after the completion of the reaction and the catalyst can be easily separated, the aromatic carboxylic acid can be produced industrially and efficiently.
- Cycloalkylhydroperoxide is a reducing agent that adds triphenylphosphine to the reaction mixture.
- the corresponding triphenylphosphine oxide was used, and then quantified by gas chromatography.
- the actual amount of cycloalkanol produced was determined by subtracting the amount of cycloalkanol obtained from gas chromatography and the amount of cycloalkyl hydroperoxide.
- a 350 ml SUS316 autoclave equipped with a stirrer is charged with 80 g (0.95 mol) of cyclohexane, lOOmg of N-hydroxyphthalimide, and 1 ⁇ 9 g of water (slurry state at room temperature (25 ° C)).
- Example 1 was repeated a plurality of times, these reaction liquids were mixed, and the separated organic phase was separated to obtain a cyclopentyl hydroperoxide-containing liquid used below.
- a SUS316 autoclave with an internal volume of 350 ml equipped with a stirrer was added to the cyclopentyl hydroperoxide-containing liquid obtained in Reference Example 1 (cyclopentyl hydroperoxide concentration 1.2% by weight) 70 ⁇ , 20% by weight carbonic acid.
- 10 g of aqueous sodium chloride solution (pHl 1 .5), manganese acetate tetrahydrate 0 ⁇ 035 mg (0.008 mg as Mn) was added, heated to 130 ° C under a nitrogen atmosphere of 3.5 MPa (gauge pressure), 1 Stir for hours.
- a SUS316 autoclave with an internal volume of 350 ml equipped with a stirrer was added to a cyclopentyl hydroperoxide-containing liquid obtained in Reference Example 1 (cyclopentyl hydroperoxide concentration 1.2% by weight) 70 ⁇ , 20% by weight water Sodium oxide aqueous solution (pH14) 10g, manganese acetate tetrahydrate 0 ⁇ 035mg (0.008mg as Mn) was added, and nitrogen atmosphere of 3.5MPa (gauge pressure) The mixture was heated to 130 ° C under ambient atmosphere and stirred for 1 hour.
- the reaction mixture contained 0 ⁇ 63 g of cyclopentanone, 0.72 g of cyclopentanol and 0 ⁇ 003 g of cyclopentyl hydroperoxide (0 g of esters). .
- the conversion of cyclopentyl hydroperoxide was 99.7%
- the selectivity for cyclopentanone based on the reacted cyclopentyl hydroperoxide was 2.3%
- the selectivity for cyclopentanol was 60.6%.
- a SUS316 autoclave with an internal volume of 350 ml equipped with a stirrer was added to the cyclopentyl hydroperoxide-containing liquid obtained in Reference Example 1 (cyclopentyl hydroperoxide concentration 1.2% by weight) 70 ⁇ , 20% by weight carbonic acid.
- 10 g of an aqueous sodium solution (pHl 1 .5) was added, heated to 130 ° C under a nitrogen atmosphere of 3.5 MPa (gauge pressure), and stirred for 1 hour.
- the reaction mixture contained 0.99 g of cyclopentanone, 0.35 g of cyclopentanol monole, 0.18 g of cyclopentinorehydrophenolate oxide, and 0.04 g of estenoles.
- Cyclopentyl esters were 0.02 g in terms of cyclopentanol.
- the conversion of cyclopentyl hydroperoxide was 77.8%, the selectivity for cyclopentanone based on the reacted cyclopentyl hydroperoxide was 68.9%, and the selectivity for cyclopentanol was 11 2%.
- the conversion of cyclopentyl hydroperoxide was 84.9%, the selectivity of cyclopentanone based on the reacted cyclopentyl hydroperoxide was 2.5%, The selectivity for pentanol was 67.1%.
- peroxide means cyclopentyl hydroperoxide
- anone means cyclopentanone
- anol means cyclopentanol
- oxidation product obtained by the present invention is useful as a raw material for producing a polymer compound such as a polyamide-based polymer compound, an intermediate material for fine chemicals, and the like.
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EP07832858A EP2096097B1 (en) | 2006-12-05 | 2007-11-30 | Method for producing oxidation product of cycloalkane |
CN2007800445910A CN101547881B (zh) | 2006-12-05 | 2007-11-30 | 环烷烃氧化产物的制备方法 |
US12/517,287 US7834217B2 (en) | 2006-12-05 | 2007-11-30 | Method for producing oxidation product of cycloalkane |
JP2008548260A JP5197380B2 (ja) | 2006-12-05 | 2007-11-30 | シクロアルカンの酸化生成物の製造方法 |
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WO2012043419A1 (ja) * | 2010-10-01 | 2012-04-05 | 宇部興産株式会社 | 炭化水素化合物の酸化触媒、並びにそれを用いた炭化水素化合物の酸化物の製造方法及び製造装置 |
WO2016067844A1 (ja) * | 2014-10-31 | 2016-05-06 | 宇部興産株式会社 | ケトン及び/又はアルコールの製造方法及びそのシステム |
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CN105339332B (zh) * | 2013-04-18 | 2018-04-10 | 罗地亚经营管理公司 | 环烷烃氧化催化剂以及生产醇和酮的方法 |
EP3356033B1 (en) | 2015-10-01 | 2022-10-19 | Monsanto Technology LLC | Process for catalytic hydrogenation of halonitroaromatics |
CN105237355B (zh) * | 2015-10-28 | 2018-03-27 | 江西科苑生物药业有限公司 | 一种环戊烷氧化制备环戊醇和环戊酮的方法 |
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US7834217B2 (en) | 2010-11-16 |
US20100081848A1 (en) | 2010-04-01 |
JPWO2008069127A1 (ja) | 2010-03-18 |
CN101547881B (zh) | 2013-05-22 |
JP5197380B2 (ja) | 2013-05-15 |
EP2096097A1 (en) | 2009-09-02 |
EP2096097B1 (en) | 2012-08-22 |
CN101547881A (zh) | 2009-09-30 |
EP2096097A4 (en) | 2011-03-30 |
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