Kureha Kagaku Kogyo Kabushiki Kaisha

Tsuneaki Chida

Shiro Yamazaki

Takafumi Shida

Keigo Satake

Katsumichi Aoki

Satoru Kumazawa

Hideo Arabori

Hiroyasu Shinkawa

Yohichi Kanda

Susumu Shimizu

Takeo Watanabe

Youichi Kanda

Susumu Shimizue

Takeo Watanave

Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a methyl group or ethyl group; R.sup.1 represents a hydrogen atom, a hydroxyl group, methoxy group or O.dbd.=together with R.sup.2 ; R.sup.2 represents a hydrogen atom or O.dbd.=together with R.sup.1 ; and X represents a methylene group, hydroxymethylene group, carbonyl group or --O-- with the proviso that R is not a methyl group when (1) R.sup.1 represents a hydroxyl group or methoxy group and X represents a methylene group or hydroxymethylene group or (2) R.sup.2 represents .dbd.O together with R.sup.1 and X represents a carbonyl group, and a herbicidal composition containing the same as an active ingredient.

Derivatives of tetrahydrobenzothiazole and herbicidal compositions

Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a methyl group, ethyl group or propyl group; R.sup.1 represents a hydrogen atom, a hydroxyl group methoxy group, acetoxy group, propionyloxy group, butylyloxy group, chloroacetoxy group, methoxyacetoxy group, C.sub.1 to C.sub.4 -alkylamino group or di(C.sub.1 to C.sub.4)-alkylamino group, or represents O.dbd.together with R.sup.2 ; R.sup.2 represents a hydrogen atom or represents O.dbd.together with R.sup.1 ; and X represents a methylene group, hydroxymethylene group, carbonyl group or --O--, and a herbicidal composition containing the same as an active ingredient.

Disclosed herein is a derivative of tetrahydrobenzothiazolyl-1,3,5-triazinone represented by the formula (I): ##STR1## wherein R is a chemical group selected from the group consisting of 1-phenylethyl, 1-methylpropyl, 2-methylpropyl, allyl, 2-propynyl, cyclopropyl, cyclopentyl, phenyl, ethoxycarbonylmethyl, 2-tetrahydrofurylmethyl, 2-acetoxyethyl, 2-chloroethyl, 2-cyanoethyl, 2-hydroxyethyl, 2-methoxyethyl, 2,2-dimethoxyethyl, 2-(propionyloxy)ethyl, 2-(ethoxycarbonyl)ethyl, 2-(4-chlorobenzoyloxy)ethyl, 1-hydroxymethyl)propyl, 3-hydroxypropyl, 3-methoxypropyl, 3-acetoxypropyl, 3-morpholinopropyl and 3-(2-methylpiperidino)propyl, and a herbicidal composition containing the derivative as an active ingredient thereof.

Herbicidal tetrahydrobenzothiazolyl-1,3,5-triazinone derivatives and

Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a hydrogen atom, a hydroxyl group or a lower acyloxy group such as acetoxy group and propionyloxy group and X represents a methylene group, C.sub.1 to C.sub.4 -alkylamino group, benzylamino group or --O--, and a herbicidal composition containing the same as an active ingredient.

Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 represent respectively a straight chain alkyl group having 1 to 6 carbon atoms or a branched chain alkyl group having 1 to 6 carbon atoms, and a herbicidal composition containing the same as an active ingredient.

Herbicidal 2-(1,3,5-1H-triazin-2-one)-tetrahydrobenzothiazole

Disclosed herein are a salt of a derivative of N-(tetrahydrobenzothiazolylcarbamoyl)oxamic acid, represented by the formula: ##STR1## wherein R.sup.1 represents a straight-chain alkyl group having one to six carbon atoms, branched-chain alkyl group having up to and including six carbon atoms, cyclic alkyl group having up to and including six carbon atoms or a phenyl group; R.sup.2 represents a hydrogen atom or a methyl group; M represents an alkali metal atom or an alkaline earth metal atom; n is 1 when M is an alkali metal atom and n is 1/2 when M is an alkaline earth metal atom and M' is a hydrogen atom or the same as M, and a herbicidal composition containing the same as an active ingredient.

Growing community of inventors

Iwaki, Japan

Tsuneaki Chida