Nippon Soda Co., Ltd.

Hideo Hosaka

Hisao Ishikawa

Isao Iwataki

Kenichi Kohara

Hiroyuki Adachi

Akiyoshi Ueda

Toshio Aihara

Takashi Kawana

Minoru Kaeriyama

Katsunori Tanaka

Kazuyuki Tomida

Akira Nakayama

Kagari Fujita

Shozo Yamada

Shigeo Yamada

Haruhito Ohishi

Shigemi Suga

Kenji Hagiwara

Hideki Yamagishi

Hideo Inaba

Hiromi Yoneda

Heterocyclic cyclohexanedione derivative, production thereof, and

This invention relates to 3-substitutedbenzoyl-bicyclo[4,4,0]heptane-2,4-dione with high herbicidal activity represented by formula I ##STR1## wherein one of R.sub.1 or R.sub.2 represents methyl and the other represents hydrogen or lower alkyl or alkoxycarbonyl or its salt.

Herbicidal 3-substitutedbenzoyl-bicyclo[4,1,0]heptane-2, 4-dione

Substituted bicycloheptandione derivatives

The invention relates to a herbicidal composition having an inert carrier and an effective amount of a compound having the formula ##STR1## wherein X is the same or different substituent selected from the group consisting of halogen, nitro, C.sub.1-6 alkyl, halo C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkylthio and C.sub.1-6 alkylsulfonyl;

Cyclohexenone derivatives

The present invention relates to 4,4,5-trimethyl-2-(2-nitro-4-methylsulfonylbenzoyl) cyclohexane-1,3-dione which is useful as herbicide.

4,4,5-trimethyl-2-(2-nitro-4-methylsulfonylbenzoyl) cyclohexane-1,3-dione

Thia-diazole derivatives having the following partial structural formula had selective herbicidal activity on some crops. A process for producing these compounds is also disclosed: ##STR1##

Thia (oxa) diazole derivatives

A cyclohexane derivative having the formula ##STR1## wherein X is 2-(ethylthio)propyl or 2-(4-chlorophenylthio)ethyl.

Cyclohexane derivatives

A cyclohexane derivative having the formula ##STR1## wherein R.sub.1 is C.sub.1-4 alkyl or halo phenyl;

A compound having the general formula ##STR1## wherein R.sub.1 is alkyl having 1-3 carbon atoms;

Cyclohexenone derivatives, preparation and herbicidal use

A compound having the general formula ##STR1## wherein R.sub.1 is ethyl or allyl; and

5-Phenylcyclohexenone derivatives

Mixture of a compound of the formula ##STR1## wherein R.sub.1 and R.sub.3 are hydrogen or methyl group,

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Odawara, Japan

Hideo Hosaka