Nissan Chemical Industries Limited

Nissan Chemical Corporation

Kenzi Makino

Tsutomu Nawamaki

Shigeaki Akiyama

Shigeomi Watanabe

Hideaki Suzuki

Koichi Suzuki

Takeshi Nagaoka

Gozyo Sakata

Takasi Ikai

Tosihiko Oguti

Yasuo Kawamura

Kimihiro Ishikawa

Katsushi Morimoto

Yasukazu Ura

Toshio Niki

Yuzi Kawamura

Takuya Kakuta

Tatsuo Numata

Yoichi Ito

Kazuhisa Sudo

Kazuya Kusano

Kenzow Fukuda

Quinoxaline derivatives having the formula I

Quinoxaline derivatives and herbicidal composition

Herbicidal composition comprising a fluoropropylthiazoline sulfonylurea

An iminosulfonylurea compound or a salt thereof which is useful as a herbicide and growth control agent against weeds.

Iminosulfonylurea derivatives and herbicides

An iminosulfonylurea derivative of the formula (1) or its salt ##STR1## wherein Q is ##STR2## wherein the variables are herein below defined, and a herbicidal and and growth control method.

Iminosulfonylurea dirivatives and herbicides

Quinoxaline derivatives having the formula I ##STR1## wherein X represents a halogen atom; R represents ##STR2## --CH.dbd.CH--COOR.sup.2 (R.sup.2 represents a C.sub.1 -C.sub.4 alkyl group); --CN or --CH.sub.2 OH, and R.sup.1 represents ##STR3## --S--R.sup.3 (R.sup.3 represents a C.sub.1 -C.sub.4 alkyl or alkenyl group or phenyl or chlorophenyl group), --NH--R.sup.4 (R.sup.4 represents a C.sub.1 -C.sub.4 alkoxy carbonylalkyl group, hydroxy alkyl group, phenyl group; C.sub.1 -C.sub.4 alkoxy alkyl group or di C.sub.1 -C.sub.4 alkyl amino group), are remarkably effective as selective herbicides.

A pyridinesulfonamide derivative of the formula (I) and a salt thereof: ##STR1## wherein R.sup.1 is a halogen atom, a trifluoromethyl group, a C.sub.1 -C.sub.6 alkoxycarbonyl group, a C.sub.1 -C.sub.6 mono- or di-alkylaminocarbonyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 alkylsulfonyl group, a C.sub.1 -C.sub.6 alkylthio group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 mono- or poly-halogenoalkoxy group, a C.sub.1 -C.sub.6 mono- or poly-halogenoalkoxy group, a C.sub.1 -C.sub.6 mono- or di-alkylaminosulfonyl group, a C.sub.1 -C.sub.6 alkoxyaminosulfonyl group substituted by a C.sub.1 -C.sub.6 alkyl group, a nitro group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkylthio group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkylsulfonyl group, or a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkoxycarbonyl group;

Pyridinesulfonamide derivatives as herbicides

A sulfamidosulfonamide derivative of the formula (1) and an agriculturally suitable salt thereof: ##STR1## wherein Q is ##STR2## X is an oxygen atom or a sulfur atom; and G is ##STR3## which are useful as herbicide.

Sulfamidosulfonamide derivatives and herbicides

A pyridinesulfonamide derivative of the formula (I) and a salt thereof: ##STR1## wherein R.sup.1 is a halogen atom, a trifluoromethyl group, a C.sub.1 -C.sub.6 alkoxycarbonyl group, a C.sub.1 -C.sub.6 mono- or di-alkylaminocarbonyl group, a C.sub.1 -C.sub.6 alkxoy group, a C.sub.1 -C.sub.6 alkylsulfonyl group, a C.sub.1 -C.sub.6 alkylthio group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 mono- or poly-halogenoalkoxy group, a C.sub.1 -C.sub.6 mono- or poly-halogenoalkoxy group, a C.sub.1 -C.sub.6 mono- or di-alkylaminosulfonyl group, a C.sub.1 -C.sub.6 alkoxyaminosulfonyl group substituted by a C.sub.1 -C.sub.6 alkyl group, a nitro group, a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkylthio group, a C.sub.1 -C.sub.5 alkyl group substituted by a C.sub.1 -C.sub.6 alkylsulfonyl group, or a C.sub.1 -C.sub.6 alkyl group substituted by a C.sub.1 -C.sub.6 alkoxycarbonyl group;

Pyridinesulfonamide derivatives and herbicides

A process for preparing a 2-(4-hydroxyphenoxy) alkanoic acid, its ester or alkali metal salt, or an optical isomer thereof, which comprises condensing hydroquinone or an alkali metal salt of hydroquinone with a compound having the formula: ##STR1## wherein X is a p-toluenesulfonyl group, a methanesulfonyl group, a benzylsulfonyl group, a p-chlorobenzenesulfonyl group or a benzenesulfonyl group, R.sup.1 is a hydrogen atom or a lower alkyl group, and R.sup.2 is a hydrogen atom, an alkyl group or an alkali metal cation, or its optical isomer in the presence of a base.

Process for preparing 2-(4-hydroxyphenoxy) alkanoic acid compounds

A herbicidal composition which comprises an adjuvant and an active ingredient of heterocyclic ether type phenoxy fatty acid derivative having the formula ##STR1## wherein A represents --CH-- or --N--; X represents a halogen atom; n is 0, 1 or 2; R.sup.1 represents a hydrogen atom; a lower alkyl group; R.sup.2 represents --OH; --O-alkyl group; --OM group (M is an inorganic or organic salt moiety); ##STR2## --O-lower alkenyl group; --O-benzyl group; --O-lower alkylalkoxy group; --O-phenyl; --O-cyclohexyl, --O-halogenoalkyl, --O-lower alkynyl and --O-cyanoalkyl; R.sup.3 and R.sup.4 respectively represent a hydrogen atom or a lower alkyl group.

Heterocyclic ether type phenoxy fatty acid derivatives and herbicidal

1-Phenylethyl sulfone derivatives substituted by a halogenated alkyloxy group is represented by the general formula ##STR1## where R is an alkyl group substituted by a halogen atom, n is 1 or 2, each of P and Q is a hydrogen atom or a lower alkyl group and each of X and Y is a hydrogen atom, a lower alkyl group or a halogen atom. The compounds are effective as a herbicide. Also disclosed is a process for their preparation.

Growing community of inventors

Funabashi, Japan

Kenzi Makino