Nissan Chemical Industries Limited

Masatoshi Ohnari

Norio Tanaka

Hideaki Suzuki

Yasuo Kondo

Kenzo Fukuda

Koichi Nishio

Tsutomu Nawamaki

Kimihiro Ishikawa

Katsushi Morimoto

Shigeomi Watanabe

Kunimitsu Nakahira

Chiaki Kawaguchi

Hiroyuki Furusawa

Takumi Terachi

There is provided a process for stereoselectively producing E-form of 3-acyloxyacrylonitrile compound (3) or Z-form which comprises reacting 3-oxopropionitrile compound (1) with an acid chloride (2), characterized in that the reaction is conducted with removal of hydrogen chloride, or by using an organic base or an inorganic base, to thereby regulate the stereostructure of the product; a process for producing the compound (1) characterized by reacting acetonitrile compound (5) with an aromatic ester compound (6) by use of an alkali metal alkoxide in a hydrocarbon solvent while removing alcohol formed as a by-product by azeotropic distillation in a separating tank; and a process for isomerizing E-form of 3-acyloxyacrylonitrile compound to Z-form thereof by use of an organic base. 

Process for producing acrylonitrile compound

Provided are a pyridine derivative represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.1-4 haloalkyl group, a C.sub.1-4 alkoxy group, a cyano group, a nitro group or a halogen atom,

Herbicidal 2,6-disubstituted pyridine compounds and compositions

Pyrazole-glycolic acid amide derivatives as herbicides

Growing community of inventors

Chiyoda-ku, Japan

Masatoshi Ohnari