Nippon Soda Co., Ltd.

Tanabe Seiyaku Company, Limited

Nobuo Matsui

Tomio Yagihara

Minoru Kaeriyama

Seiji Tazaki

Hiroshi Sakai

Isao Iwataki

Tomio Yamada

Atsushi Ogihara

Hidekazu Miyazaki

Hirofumi Suzuki

Takehira Kaneko

Kuniyasu Maeda

Atsushi Yanagisawa

Takakazu Kojima

Akira Nakada

Hisao Ishikawa

Isami Hamamoto

Takeo Shimizu

Yuuki Nakagawa

Nobuhiro Umeda

Hitoshi Matsumoto

Shozo Yamada

Yasushi Yasuda

Masami Mizuno

Tamio Hara

Katsunori Mikuma

Shigemi Suga

Shiro Higashida

Akira Nakata

Fuminiko Nagasaki

Toshiaki Satoh

Tetsuya Katoh

Susumu Okunuki

A process for producing heterocyclic compounds which are useful as pesticides, drugs, fungicidal materials or intermediates thereof. TosMIC is reacted with an aldehyde or an imino compound: 1) in a solvent mixture of an aprotic solvent with a protic solvent in the presence of a base, 2) in the presence of a phase-transfer catalyst and an inorganic base, or 3) in the presence of an inorganic base. Thus, a desired product can be efficiently obtained using a solution without isolating TosMIC which is irritating and unstable, has a low decomposition point and shows explosivity.

Process for producing 5-substituted oxazole compounds and 5-substituted imidazole compounds

The present invention provides a process for the production of a 4-substituted azetidinone. The process comprises reacting ##STR1## wherein R represents a hydrogen atom or a protecting group for N, R.sup.1 represents an alkyl which may be a substituent having an unprotected or protected hydroxyl group; and Z represents a leaving group; with ##STR2## wherein R.sup.2 represents hydrogen or alkyl, R.sup.3 and R.sup.4 each represent hydrogen, alkyl, alkenyl, alkynyl, phenyl, cycloalkyl, or naphthyl, or R.sup.3 and R.sup.4, together with the carbon atom to which they are bonded, form a ring system; X and Y each represent oxygen, sulfur or N-r.sup.1, wherein r.sup.1 represents a hydrogen atom or lower alkyl; A, B, D and E each represent nitrogen or C-r.sup.2, wherein r.sup.2 represents hydrogen, halogen, lower alkyl or lower alkoxy, provided that at least two of A, B, D and E are C-r.sup.2 ; and a ring involving G, J and K has two carbon/carbon double bonds therein and one of G, J and K represents oxygen, sulfur or N-r.sup.1 while the remaining two represent C-r.sup.2 ; in the presence of

Process for the production of 4-substituted azetidinone derivative

This invention relates to 3,6-diamino-2,5-pyrazinedicarbonitrile which is a red crystal and yellowish green fluorenscent substance and the methods of preparation from compounds represented by formula [I], ##STR1## (wherein R are aryl, alkyl, aralkyl or alkenyl or may be substituted), as a starting material, under acidic condition in the presence of oxygen.

3,6-diamino-2,5-pyrazinedicarbonitrile

By the selective use of a homogeneous stable precursor solution in which no polymerization reactions immediately occur and which contains aromatic compounds such as pyrrole, thiophene, aromatic amines or their derivatives, oxidizing agents, and solvents, as a precursor solution of conductive polymer film, a homogeneous and tough conductive polymer film can be obtained when the said precursor solution is cast on a substrate and the solvents are evaporated to remove.

Method for the preparation of conductive polymer film

Pyrrole monomer

Aminoacetonitrile derivatives, where the 2-position of aminoacetonitrile is optionally substituted by alkylthio groups, arylthio groups and heterocyclicthio groups. The process for making such compounds comprises reacting hydrogen cyanide with the desired corresponding R-S-H and recovering the crystallized salt thereof. The aminoacetonitrile derivatives are useful as starting materials to produce pharmaceutical and agricultural intermediates such as benzomide derivatives with fungicidal and herbicidal activities.

Aminoacetonitrile derivatives

Thiazolino-[3,2-a]-1,3,5-triazine-2-one-4-(one or thione) derivatives

A compound of the formula ##STR1## wherein typical representations of X, Y and Z is oxygen or sulfur; R.sub.1 is methyl; R.sub.2 is phenyl substituted with chlor, methyl, methoxy, nitro or methylenedioxy; and R.sub.3 is cyclohexyl, methylcyclohexyl or tetrahydropyranyl, is useful as an acaricide.

Heterocyclic compounds

Compounds of the general formula ##STR1## wherein X is trifluoromethyl or halogen,

Diphenylamine derivatives

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Odawara, Japan

Nobuo Matsui