Nippon Soda Co., Ltd.

Tomio Yagihara

Nobuo Matsui

Hiroyuki Yamanaka

Seiji Tazaki

Nobuhiro Umeda

Katsunori Mikuma

Atsushi Yanagisawa

Takakazu Kojima

Akira Nakada

Isami Hamamoto

Hiroyuki Adachi

Yuuki Nakagawa

Takeo Shimizu

Masao Yamaguchi

Hitoshi Matsumoto

Hirofumi Suzuki

Takehira Kaneko

Masami Hatano

Sho Hashimoto

Koshin Miyazaki

Michinori Takebayashi

Shiro Higashida

Akira Wakai

Benzoic acid derivatives useful as intermediates for the preparation of drugs and agricultural chemicals, particularly compounds having herbicidal activity; and easy and economical processes for the preparation of the same. The processes are specifically those represented by reaction formula for the preparation of compounds represented by general formulae (1) and (6).

Benzoic acid derivatives and processes for the preparation thereof

A process for the preparation of (E)-3-(1-propenyl)-2-isoxazoline, characterized by reacting crotonaldehyde with hydroxylamine to form an oxime, and then converting the oxime into a nitrile oxide while reacting the nitrile oxide with ethylene.

Process for the preparation of (e)-3-(1-propenyl)isoxazoline

Bicycloheptene compounds represented by general formula (1) and being useful as intermediates for the production of agricultural chemicals or drugs (wherein X is hydroxycarbonyl, hydroxymethyl, halogenomethyl, nitromethyl, or methylthiomethyl); and a process for the preparation of compounds of general formula (1), characterized by reacting 5,5-dimethoxy-1,2,3,4-tetrachlorocyclopentadiene with a compound represented by general formula (2) (wherein X is as defined above)

Bicycloheptene derivatives and processes for the preparation of the same

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

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

The present invention relates to a 2,3-diaminoacrylonitrile derivative or salts thereof, having the formula ##STR1## wherein R represents an alkyl group (which may be substituted by unsubstituted or substituted phenyl groups, halogen atoms, C.sub.1-6 alkoxycarbonyl groups, carboxy groups, C.sub.1-6 alkoxycarbonyl C.sub.1-6 alkylthio groups, hydroxy groups, mercapto groups, cycloalkyl groups or heterocyclic groups containing oxygen atoms); an alkenyl group; a cycloalkyl group; an aryl group (which may be substituted by halogen atoms, C.sub.1-6 alkyl groups, nitro-groups, unsubstituted or substituted phenyl or phenoxy groups or heterocyclic groups containing oxygen atoms or sulfur atoms). The 2,3-diaminoacrylonitrile derivative can be used as starting materials for the production of pharmaceutical and/or agricultural intermediates such as cyanoimidazoles, cyanopyrazines or other cyano-substituted heterocycles.

2,3-diaminoacrylonitrile derivatives and process for making the same

Carbamic acid derivatives of the general formula: ##EQU1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of lower alkyl, cycloalkyl, phenyl and phenyl substituted with halogen,

Fungicidal composition containing 2-(N-n-butylcarbamoylthio) ethyl

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Kurashiki, Japan

Tomio Yagihara