National Institute of Advanced Industrial Science and Technology

Toyota Jidosha Kabushiki Kaisha

Showa Denko K.k.

Arakawa Chemical Industries, Ltd.

Yoshihiro Kon

Kazuhiko Sato

Hiroshi Uchida

Yuji Kobayashi

Chikara Ohto

Yukio Okamura

Naoki Sasagawa

Yoichiro Ezaki

Kiyoshi Takumi

Yutaka Ono

Hideaki Yazawa

The present invention provides a method for producing an epoxy compound, comprising oxidizing a carbon-carbon double bond of an organic compound by hydrogen peroxide in the presence of a neutral inorganic salt and a mixed catalyst of a tungsten compound (a), at least one phosphorus compound selected from the group consisting of phosphoric acids, phosphonic acids, and salts thereof (b) and a surfactant (c), and an epoxidizing method comprising oxidizing a carbon-carbon double bond by hydrogen peroxide in the presence of the catalyst and the neutral inorganic salt.

Method for manufacturing an epoxy compound and method for epoxidizing a carbon&#x2014;carbon double bond

A novel process for producing a polyfunctional epoxy monomer is provided that facilitates separation of an aqueous layer catalyst from a reaction solution and has satisfactory hydrogen peroxide efficiency by reacting an aqueous hydrogen peroxide solution with a polyolefin without using an organic solvent and under mild conditions. The process in the present invention is a process for producing a corresponding epoxy compound by reacting an organic compound having a carbon-carbon double bond with hydrogen peroxide present in an aqueous hydrogen peroxide solution to epoxidate the double bond, wherein a tungsten compound and tertiary amine are used as reaction catalysts.

Process for production of epoxy compound

It is an object of this invention to provide a method for efficiently synthesizing monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid with the use of unsaturated triacyl glycerol as a starting material and hydrogen peroxide as an oxidant. Such method comprises allowing unsaturated triacyl glycerol to react with hydrogen peroxide in the presence of a quaternary ammonium polybasic acid hydrogen salt and at least one member selected from the group consisting of tungstic acid, heterotungstic acid, and salts thereof.

Method for producing carboxylic acid

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Tsukuba, Japan

Yoshihiro Kon