Nihon Nohyaku Co., Ltd.

Nikon Nohyaku Co., Ltd.

Katsumasa Okawa

Mitsuru Kajioka

Hitoshi Kurono

Kuniaki Taninaka

Kunikazu Hiraga

Eiji Kohno

Kenichi Ikeda

Tsutomu Mabuchi

Tatsuo Harada

Hiroshi Hamaguchi

Hideo Takaishi

Tetsuji Ohshima

Masanori Hikawa

Novel cyclohexane-1,3-dione derivatives represented by 2-{1-(3-chloro-2-propenyloxyimino)propyl}-5-(1-methyl-1H-pyrazol-4-yl)cycl ohexane-1,3-dione and intermediates thereof are disclosed. The cyclohexane-1,3-dione derivatives have a potent herbicidal effect against a wide variety of weeds and can selectively control injurous weeds at lower dosages. A process for preparing the cyclohexane-1,3-dione derivatives is also disclosed.

Cyclohexadione derivatives, selective herbicidal compositions as well as

There is provided a new herbicidal compound of the formula, ##STR1## wherein R.sup.1 is an alkyl group; R.sup.2 is an alkynyl group, a halomethyl group, or a haloethyl group; and X is an alkoxy group, an alkenyloxy group, an alkoxy-alkoxy group, an alkynyloxy group, a hydroxy group, a halomethyloxy group, or a haloethyloxy group.

Triazolinone derivative and herbicidal use thereof

Novel benzoate derivatives having a powerful herbicidal effect on various weeds grown in paddy fields, upland fields, and other places have been found out, which are represented by the formula ##STR1## wherein X is --SR, --O--CH.sub.2 CH.sub.2 O).sub.n R, --OCH.sub.2 CH.sub.2 SR, ##STR2## herein R being lower alkyl and n being an integer of 1 to 3.

Benzoate derivative, method of preparing the same and use thereof as a

A novel .DELTA..sup.2 -1,2,4-triazolin-5-one derivative having a herbicidal activity, which is represented by the formula ##STR1## wherein, R.sup.1 is a C.sub.1 -C.sub.4 alkyl; R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, or a C.sub.2 -C.sub.4 alkenyl group; and X is a hydroxy group, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.6 alkyloxy group, an alkyloxyalkyloxy group of which two alkyls may be same as or different from each other and each alkyl is of C.sub.1 -C.sub.4, a C.sub.2 -C.sub.4 alkenyloxy, or an alkyloxycarbonylalkyloxy group of which two alkyls may be same as or different from each other and each alkyl is of C.sub.1 -C.sub.4.

.DELTA..sup.2 -1,2,4-triazolin-5-one derivatives and herbicidal usage

Growing community of inventors

Kawachinagano, Japan

Katsumasa Okawa