Ishihara Sangyo Kaisha, Ltd.

Kazuyuki Maeda

Takahiro Haga

Tsunezo Yoshida

Nobuyuki Sakashita

Fumio Kimura

Masahiko Ikeguchi

Yuji Nakamura

Shigeo Murai

Fumio Kanamori

Shooichi Honzawa

Toshio Nakajima

Kanichi Fujikawa

Isao Yokomichi

Hiroshi Shimoharada

Koji Hayashi

Ryuzo Nishiyama

Tadaaki Toki

Ryohei Takahashi

Terumasa Komyoji

Kouji Hayashi

Toshio Seki

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 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--).

N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3[halo-substituted

2-Substituted phenoxy-3-chloro-5-trifluoromethyl pyridine having the formula (I): ##STR1## wherein X is a hydrogen atom; a (C.sub.1 -C.sub.4)alkyl group; a (C.sub.1 -C.sub.4)alkoxy group; a --COOR.sub.1 group wherein R.sub.1 is a hydrogen atom, a cation or a (C.sub.1 -C.sub.4)alkyl group; or an ##STR2## group wherein R.sub.2 is a hydrogen atom, a cation, a (C.sub.1 -C.sub.4)alkyl group or a benzyl group; and Y is a halogen atom, a nitro group or a cyano group, useful as a herbicide.

2-Substituted phenoxy-3-chloro-5-trifluoromethyl pyridine useful as a

A herbicidal composition which comprises an active ingredient of a diphenylether having the formula ##STR1## wherein X represents a chlorine atom or a trifluoromethyl group; R represents a methyl or ethyl group and n represents an integer of 2 or 3; and an agriculturally acceptable adjuvant.

Herbicidal composition

A diphenyl ether compound, such as 2,4'-dichloro-4-trifluoromethyl-3'-carbomethoxydiphenyl ether, which has herbicidal properties and is effective for controlling weeds using soil and/or foliage application and herbicidal compositions containing the same.

Diphenyl ether compounds

Growing community of inventors

Shiga, Japan

Kazuyuki Maeda