Tokuyama Corporation

Tokuyama Soda Kabushiki Kaisha

Seiji Nagata

Masahiko Ishizaki

Junji Takenaka

Masao Yamaguchi

Shozo Kato

Toshio Kitajima

Hidenobu Itahana

Tadashi Kobutani

Makiko Furuki

Ketonitrile derivatives and antibacterial agent and drugs containing the

Disclosed herein are cyanoketone derivatives of the following formula (1) ##STR1## such as 1-cyano-1-piperidinocarbonyl-3-[4-(2-chloro-4-trifluoromethylphenoxy)pheno xy]-2-butanone, 1-cyano-1-piperidinocarbonyl-3-[4-(3-chloro-5-trifluoromethyl-2-pyridyloxy )phenoxy]-2-butanone, 1-cyano-1-(N-methyl-N-dichlorophenyl)aminocarbonyl-3-[4-(2-quinoxalyloxy)p henoxy]-2-butanone, 1-cyano-1-(N,N-dibutyl)aminocarbonyl-3-[4-(3-chloro-5-trifluoromethyl-2-py ridyloxy)phenoxy-2-butanone, and the like, which are characterized by excellent herbicidal activity and effectiveness against a variety of gramineous weeds.

Cyanoketone derivative and herbicide containing it as an active component

A cyanoketone derivative of the following formula (1) ##STR1## wherein A.sub.1 is a substituted or unsubstituted phenyl or naphthyl group or a substituted or unsubstituted heterocyclic group;

Carbonyl acetonitrile derivative and herbicide containing it as an

Growing community of inventors

Tokuyama, Japan

Seiji Nagata