Mitsubishi Chemical Industries Limited

Mitsubishi Chemical Corporation

Agency of Industrial Science and Technology

Mitsubishi Kasei Corporation

Kenji Murayama

Keisuke Wada

Takao Maki

Eiichi Watanabe

Kazutaka Ida

Keiichi Sato

Masaru Ishino

Mitsuhisa Tamura

Yoshinori Hara

Takashi Deguchi

Yukio Kasori

Shuzo Nakamura

Yoshio Asahi

Hiroo Tanaka

Process for producing cis-epoxysuccinates

A method for producing a carbonic acid ester, which comprises reacting an aliphatic alcohol with carbon monoxide and oxygen in the presence of 1 a platinum group metal or its salt, 2 metal copper, a copper salt or a copper complex, 3 at least one member selected from the group consisting of alkali metal salts and alkaline earth metal salts, and 4 a 2-hydroxypyridine.

Method for producing a carbonic acid ester

Oxocarboxylic acids, for example adipaldehydic acid can be advantageously produced by a process, in which cyclohexanones are oxidized with molecular oxygen in the presence of water and iron or iridium compound, preferably also in the presence of a sulfur or organic nitrogen compound.

Process for producing oxocarboxylic acids

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.

Process for producing aliphatic alcohols

There is disclosed a process for producing pyrogallol by dehydrogenation of cyclohexane-1,2,3-triol in the presence of a platinum group metal catalyst in an inert gas stream. The catalyst contains, as modifier, (a) at least one alkali metal salt and/or (b) at least one member selected from the group consisting of gold, tellurium, silver, arsenic, selenium, indium, antimony, bismuth, copper and zinc, with the Pd-Te catalyst being preferred. The catalyst ingredients are supported on a carrier. The process gives high selectivity of pyrogallol.

Process for producing pyrogallol

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Yokohama, Japan

Kenji Murayama