Ishihara Sangyo Kaisha, Ltd.

Tsunezo Yoshida

Kazuyuki Maeda

Takahiro Haga

Nobuyuki Sakashita

Fumio Kimura

Shooichi Honzawa

Masahiko Ikeguchi

Yuji Nakamura

Shigeo Murai

Fumio Kanamori

Toshio Nakajima

Hiroshi Kikugawa

Hiroshi Yoshii

Hiroshi Shimoharada

Koji Hayashi

Shigehisa Kanbayashi

Kouji Hayashi

Toshio Seki

Yasuhide Kuriyama

A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): ##STR1## wherein A is CH or N; when A is CH, R.sub.1 and R.sub.2 may be either each independently a member selected from the group consisting of unsubstituted or substituted alkyl groups, unsubstituted or substituted alkenyl groups, unsubstituted or substituted cycloalkyl groups, and unsubstituted or substituted phenyl groups; when A is N, R.sub.1 is an unsubstituted or substituted alkyl group, R.sub.2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.

Certain 2-alkanesulfonamido-pyridine derivatives

A substituted pyridinesulfonamide compound or its salt represented by the following formula (I): ##STR1## wherein A is CH; R.sub.1 and R.sub. 2 are each independently a member selected from the group consisting of unsubstituted or substituted alkyl groups, unsubstituted or substituted alkenyl groups, unsubstituted or substituted cycloalkyl groups, and unsubstituted or substituted phenyl groups; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups. This compound is an effective ingredient in a herbicide showing a wide weed-control spectrum even when used in a small amount.

Substituted pyridinesulfonamide compound or its salt, process for

A herbicidal composition is disclosed, comprising, as active ingredients, 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)ure a and an isopropylamine salt or trimethylsulfonium salt of N-(phosphonomethyl)glycine.

Herbicidal composition comprising glyphosate and

Disclosed is a chemically stabilized herbicidal oil-based suspension, comprising N-[(4,6-dimethoxypyrimidin-2-yl) aminocarbonyl-3-dimethylaminocarbonyl-2-pyridinesulfonamide (nicosufluron) and/or its salt as an effective herbicidal component, urea, a vegetable oil and/or mineral oil, a surfactant and, as desired, an additional herbicidal component, a thickener, a solvent and other adjuvants. The present invention is characterized in that urea is added to a herbicidal oil-based suspension to suppress decomposition of the effective herbicidal component and to provide a chemically stabilized herbicidal oil-based suspension.

Herbicidal oil-based suspension comprising nicosulfuron and urea as a

A herbicidal composition is disclosed, comprising, as active ingredients, 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)ure a and an ammoium salf of homoalanin-4-yl(methyl)phosphinic acid.

Herbicidal composition comprising glufosinate and a heterocyclic

A thiophenesulfonamide compound having the formula: ##STR1## wherein X is a halogenoalkoxyalkyl group, and Y is ##STR2## wherein A is .dbd.N-- or .dbd.CH--, and each of Z.sub.1 and Z.sub.2 is a methyl group or a methoxy group, and its salt.

Thiophenesulfonamide compounds, herbicidal compositions containing them,

A sulfonamide compound and a salt thereof is represented by the following general formula: ##STR1## wherein each of X.sub.1, X.sub.2, and X.sub.3 independently represents a hydrogen atom or a halogen atom, each of Y.sub.1, Y.sub.2, and Y.sub.3 independently represents a halogen atom, and R represents a methyl group or a methoxy group, and is effective as an active ingredient of a herbicidal composition.

Isothiazoles as intermediates for herbicidal sulfonamides

Thiophenesulfonamide compounds, and herbicidal compositions containing

Sulfonamide compounds and salts thereof, herbicidal compositions

Novel substituted thiophenesulfonamide compounds useful as herbicides which are represented by the following formula, and salts thereof: ##STR1## wherein either one of X and Y is an ethenyl or propenyl group having all hydrogen atoms replaced by chlorine atoms and/or fluorine atoms, and the other is the group ##STR2## (wherein R.sub.1 and R.sub.2 are each a methyl or methoxy group, and A is .dbd.N-- or .dbd.CH--).

Growing community of inventors

Shiga, Japan

Tsunezo Yoshida