Sankyo Company, Limited

Mitsui Chemicals Agro, Inc.

Mitsui Agro Chemicals, Inc.

Kiyoshi Koi

Hiroyuki Komai

Junji Kadotani

Mutsuo Nakajima

Kohei Furuya

Tatsuo Haneishi

Seigo Iwado

Yoshihisa Tsukamoto

Shigeru Mio

Hideo Takeshiba

Kazuo Sato

Toyokuni Honma

Sadao Sato

Soji Sugai

Noriaki Kudo

Mitsuru Ito

Sadao Sata

A compound represented by the formula: [wherein

3-phenoxy-4-pyridazinol derivatives and herbicidal composition containing the same

A compound represented by the formula: [wherein Rrepresents a hydrogen atom, a halogen, atom, alkyl group, etc.,

3-phenoxy-4-pyridazinol derivatives and herbicide composition containing the same

Compounds of formula (I): ##STR1## (wherein: R.sup.1 is optionally substituted alkyl, cycloalkyl, optionally substituted alkoxy, or optionally substituted alkylthio; R.sup.2 is hydrogen, optionally substituted alkyl, cycloalkyl, optionally substituted alkenyl, optionally substituted alkynyl or a group of formula --YR.sup.7 ; R.sup.3 is optionally substituted alkyl, cycloalkyl, optionally substituted alkoxy group, optionally substituted alkenyl, optionally substituted alkynyl, halogen, nitro or a group of formula --COR.sup.8, wherein R.sup.8 is hydrogen, alkyl, cycloalkyl or alkoxy; R.sup.4 and R.sup.5 are each hydrogen atom or alkyl; R.sup.6 is optionally substituted alkyl, cycloalkyl, optionally substituted alkoxy group, optionally substituted alkenyl, optionally substituted alkynyl, halogen, nitro, or a group of formula --COR.sup.8, as defined above; A, Q and X are each oxygen or sulfur; Y is a group of formula --CO--, --COO--, --CH.sub.2 O--, --CH.sub.2 S--, --CH.sub.2 CH.sub.2 O--, --CH.sub.2 CH.sub.2 S--, --CH.sub.2 CO--, --CH.sub.2 COO--, --CH(Me)COO--, --CH.sub.2 CH.sub.2 CO--, --CH.sub.2 OCO--, CH.sub.2 OCOO-- and --CH.sub.2 CH.sub.2 OCO--; R.sup.7 is optionally substituted alkyl group, cycloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted aralkyl, or an optionally substituted heterocycle; and m and n are each an integer from 0 to 4; and herbicidally acceptable addition salts thereof) are useful as herbicides.

Aniline derivatives having herbicidal activity, their preparation and

A novel compound names 'cornexistin' has the formula (I): ##STR1## and it and the corresponding ring-opened diacid and salts thereof have herbicidal and growth regulating effects. Cornexistin can be prepared by cultivation of a microorganism of the genus Paecilomyces, e.g. Paecilomyces variotii Bainier SANK 21086.

Herbicide, its preparation and use

A novel compound named 'cornexistin' has the formula (I): ##STR1## and it and the corresponding ring-opened diacid and salts thereof have herbicidal and growth regulating effects. Cornexistin can be prepared by cultivation of a microorganism of the genus Paecilomyces, e.g. Paecilomyces variotii Bainier SANK 21086.

Anhydride herbicides

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Shiga, Japan

Kiyoshi Koi