Mitsubishi Kasei Corporation

Mitsubishi Chemical Corporation

Mitsubishi Gas Chemical Company, Inc.

Agency of Industrial Science and Technology

Mitsubishi Chemical Industries Limited

Yoshinori Hara

Keisuke Wada

Koushi Sasaki

Haruhiko Kusaka

Yoshinobu Ohnuma

Mareki Miura

Koetsu Endou

Hiroko Takahashi

Hironobu Ohno

Hiroko Inagaki

Masaru Ishino

Masamichi Onuki

Mitsuhisa Tamura

Hisao Urata

Eiichi Watanabe

Takashi Deguchi

Yoshinori Nakanishi

Shuzo Nakamura

Kenji Murayama

Seijiro Nishimura

Mikael Retboll

Sugio Nishimura

Hiroo Tanaka

Masami Okuda

The invention provides a process that includes isomerizing at least one allylic substrate having an acyloxyl group or a hydroxyl group at the allyl position thereof, to produce a corresponding allylic isomer, wherein the isomerizing is conducted in the presence of a catalyst that includes a Group VIII-X metal compound and a phosphite compound. The invention also provides a process that includes: (1) diacetoxylating butadiene to obtain a mixture containing at least one selected from the group including 3,4-diacetoxy-1-butene, 3-butene-1,2-diolmonoacetoxylate and a mixture thereof, and at least one selected from the group including 4-diacetoxy-2-butene, acetoxy-4-hydroxy-2-butene and a mixture thereof; (2) separating, from the mixture, a portion containing at least one selected from the group including the 3,4-diacetoxy-1-butene, the 3-butene-1,2-diolmonoacetoxylate, and a mixture thereof; (3) isomerizing at least a part of the portion in the presence of a catalyst, to obtain an isomerization product mixture; (4) optionally, recirculating at least a part of the isomerization product mixture to at least one selected from the group including the isomerizing, the separating, the mixture, and combinations thereof. The processes of the present invention achieve both high conversion rates and high selectivity, and suppress the otherwise undesirable deposition of metals.

Process for the isomerization of allylic compounds

A process for making cycloalkyldimethanol, includes hydrogenating at least one cycloalkyldicarboxylic acid and/or an alkyl ester thereof with a catalyst, to produce a cycloalkyldimethanol, where the catalyst contains ruthenium, tin and platinum. Also, a method for regenerating a used catalyst, includes contacting the used catalyst with a base, where the catalyst includes ruthenium, tin and platinum.

Process for the manufacture of cycloalkyldimethanol

An epoxy compound formula (1), and a hydrogenation process for preparing thereof;

Hydrogenated diglycidyl ethers of bipheny-4,4&prime;-diol

A method for production of unsaturated glycol diester, such as 1,4-diacetoxy-2-butene, is formed of reacting conjugated diene with carboxylic acid and molecular oxygen in the presence of a solid catalyst in the liquid phase under pressure. The catalyst is formed of rhodium and tellurium, which are supported on an inorganic porous carrier. The catalyst is stable, and the unsaturated glycol diester is prepared in high conversion and selectivity.

Process for producing unsaturated glycol diester using tellurium and

To provide an epoxy resin composition which can provide a cured resin which is excellent in weatherability and electric properties, and which is useful as a resin for coatings, an encapsulant, a casting material, an electric insulator, etc. An epoxy resin composition which contains a hydrogenated epoxy resin obtained by hydrogenation of an aromatic epoxy resin, wherein the hydrogenated epoxy resin has a hydrogenation ratio in an aromatic ring of not less than 85%, a loss ratio of epoxy groups of not more than 20%, and a total chlorine content of not more than 0.3% by weight.

Epoxy resin composition

A process for preparing 1,6-hexanediol comprising hydrogenating a starting material containing at least one compound selected from the group consisting of adipic acid, .epsilon.-hydroxycaproic acid, .epsilon.-caprolactone and oligomers of .epsilon.-caprolactone, preferably a substance recovered from a reaction mixture resulting from liquid phase oxidization of cyclohexane for the production of cyclohexanol and cyclohexanone, in a liquid phase in the presence of a solid catalyst containing ruthenium and tin.

Process for preparing 1, 6-hexanediol

A process for the preparation of a 3-aminomethyl-3,5,5-trialkylcyclohexylamine, which comprises hydrogenating 3-cyano-3,5,5-trialkylcyclohexylamine in the presence of ammonia and a ruthenium-cobalt catalyst.

Process for the preparation of

A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein the hydrogenation reaction is conducted in the liquid phase in the presence of (1) ruthenium, (2) an organic phosphine and (3) a compound of a metal selected from the group consisting of Groups IVA, VA and IIIB in the Periodic Table. According to the present invention, for the production of a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic ester, the reaction is conducted in a homogeneous liquid phase reaction by using the ruthenium,organic phosphine and compound of a metal selected from the group consisting of Groups IVA, VA and IIIB, of the present invention as the catalyst, whereby the desired lactone product can be obtained at high selectivity under a mild condition as compared with the conventional methods.

Method for producing a lactone

A method for producing 1,4-butanediol by hydrogenating succinic anhydride, succinic acid or .gamma.-butyrolactone in the presence of a catalyst, wherein the hydrogenation reaction is conducted in a liquid phase using as the catalyst a ruthenium type catalyst comprising ruthenium, an organic phosphine and a phosphorus compound of the following formula (1): ##STR1## wherein each of X and Y is an atom or a group selected from the group consisting of a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxy group, an alkyl group and an aryl group.

Method for producing 1,4-butanediol

A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein said catalyst is a ruthenium catalyst comprising (1) ruthenium, (2) an organic phosphine and (3) a conjugate base of an acid having a pKa of less than 2.

A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein the hydrogenation reaction is conducted in the liquid phase in the presence of (1) ruthenium, (2) an organic phosphine and (3) a compound of a metal selected from the group consisting of Groups IVA, VA and IIIB in the Periodic Table. According to the present invention, for the production of a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic ester, the reaction is conducted in a homogeneous liquid phase reaction by using the ruthenium, organic phosphine and compound of a metal selected from the group consisting of Groups IVA, VA and IIIB, of the present invention as the catalyst, whereby the desired lactone product can be obtained at high selectivity under a mild condition as compared with the conventional methods.

A process for producing aliphatic alcohols by reacting carbon monoxide and hydrogen in a liquid phase in the presence of catalyst components, characterized in that rhodium and a trialkylphosphine represented by the general formula PR.sub.1 R.sub.2 R.sub.3 where each of R.sub.1, R.sub.2 and R.sub.3 is a primary alkyl group, a secondary alkyl group, a tertiary alkyl group or a cycloalkyl group, are used as the catalyst components.

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Yokohama, Japan

Yoshinori Hara