Nissan Chemical Industries Limited

Toshiaki Sato

Tsutomu Nawamaki

Susumu Yamamoto

Takasi Ikai

Eiichi Oya

Katsushi Morimoto

Tosihiko Oguti

Takashi Ikai

Takuya Kakuta

Kenji Hattori

Fumio Suzuki

Yoshihiro Iwasawa

Kakuta Takuya

Disclosed is a novel pyrazolesulfonylurea derivative represented by the formula (I), preparation thereof, a herbicide containing said derivative as an active ingredient and a herbicidal method by use thereof. ##STR1## (wherein A, B, C, D, X, Y and Z are as defined in the specification).

Pyrazolesulfonylurea derivatives, preparation thereof, herbicide

A process for growing wheat and selectively preventing or controlling the growth of wild oats in the same site in which the wheat is being cultivated which comprises applying to said site an amount of an active compound sufficient to control the growth of wild oats without adversely affecting the growth of the wheat, said active compound being N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-4-methoxycarbonyl-3-methyl-1 -(2-pyridyl)pyrazole-5-sulfonamide or N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-4-methoxycarbonyl-1-(2-pyrid yl)pyrazole-5-sulfonamide.

Wheat growing process utilizing selective herebicide

Disclosed are a pyrazolesulfonamide derivative represented by Formula (I): ##STR1## wherein B, D, Q, E, W and G have the same meaning as defined in the specification, a process for its production and a herbicide containing it.

Pyrazolesulfonamide derivative, and herbicide containing it

There is disclosed imidazolesulfonamide derivatives represented by the general formula (I): ##STR1## wherein Q, m, R, B, D and T represent a group as specified in the specification and

Imidazolesulfonamide derivatives and herbicides

The present invention provides novel compounds which are intermediates in the production of the compounds of the formula (I). These novel intermediates have the following general formula ##STR1## wherein Z is NH.sub.2 or chlorine, R.sup.1 is chlorine or bromine and R.sup.2 is methyl or ethyl.

Pyrazolesulfonylurea amides and chlorides

There are disclosed a compound formula (I): ##STR1## wherein R.sup.1 represents a chlorine atom or a bromine atom; R.sup.2 represents methyl or ethyl; and X represents methyl or methoxy; a herbicidal composition containing the same as an active ingredient; and a method of use of the compound represented by formula (I) for controlling the growth of weeds without harm to crop plants in the same location.

Growing community of inventors

Funabashi, Japan

Toshiaki Sato