Idemitsu Kosan Company, Limited

Nippon Chemiphar Co., Ltd.

Hirozo Sugahara

Kosaku Honna

Michio Sugimoto

Yasuo Fujimoto

Kikuo Nagatoshi

Hidehiko Kaji

Konomu Kurisaki

Hiroshi Ichikawa

Akio Inayoshi

Noriki Fujimoto

Toshimichi Ito

Kiyoshi Watanabe

Atsunobu Sakoda

Noboru Kawata

Syoji Ryu

Fumitada Yamamoto

Shigeyoshi Mizokami

A process for producing modified polypropylene comprising reacting polypropylene with a liquid rubber and maleic anhydride in a solvent in the presence of a radical generator.

Process for production of modified polypropylene

Acenaphthenes are obtained by reacting cyclododecatriene in the presence of a specified catalyst. Acenaphthenes are raw materials for jet fuel, synthetic resin, dye, bacteriocide, insecticide, synthetic lubricant oil, additives for various lubricating oils, etc.

Process of producing acenaphthenes

Unsaturated carbonyl compounds such as methyl methacrylate are produced by reacting an acetylene, CO and water or an alcohol in the presence of a catalyst comprising a Pd(II) compound and a compound R'X where R' is H, lower alkyl or aryl and X is halogen, and in the presence of an oxygen-containing compound other than water or an alcohol.

Method of producing unsaturated carbonyl compounds

Adamantane derivatives of this invention are represented by the formula ##STR1## wherein R.sub.1 is ##STR2## or --CH.sub.2 -- and R.sub.2 is ##STR3## or --CH.sub.2 CH=CH--. Said derivatives are cerebral vasodilators or intermediates for the same.

Adamantane-piperazine derivatives

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Sodegaura, Japan

Hirozo Sugahara