Kumiai Chemical Industry Co., Ltd.

Ihara Chemical Industry Co., Ltd.

Yukihiro Watase

Mikio Yamaguchi

Susumu Katou

Takeshi Kambe

As a herbicide, a 9-phenylimino-8-thia-1,6-diazabicyclo [4.3.0]nonane-7-one derivative having the formula: ##STR1## wherein each of X and Y is hydrogen or halogen, and Z is ##STR2## wherein R is hydrogen or alkyl, and R.sup.1 is alkyl, cycloalkyl, or alkoxyalkyl, provided that when R is methyl, R.sup.1 is alkoxyalkyl or Y and Z together form ##STR3## bonded to the phenyl ring, wherein R.sup.2 in hydrogen or C.sub.1 -C.sub.6 alkyl and R.sup.3 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.5 alkenyl, or C.sub.3 -C.sub.5 -alkynyl.

Thiadiazabicyclononane derivatives and herbicidal composition

As a herbicide, a 9-phenylimino-8-thia-1,6-diazabicyclo [4.3.0]nonane-7-one derivative having the formula: ##STR1## wherein each of X and Y is hydrogen or halogen, and Z is ##STR2## wherein R.sup.1 is alkyl or cycloalkyl, or --COOR.sup.2 wherein R.sup.2 is alkyl.

Thiadiazabicyclononane derivatives and herbicidal compositions

As a herbicide 9-phenylimino-8-thia-1,6-diazabicyclo[4.3.0]nonane-7-(one or thione) compound having the formula: ##STR1## wherein Y represents halogen, hydroxyl, alkyl, alkoxy which may be substituted by halogen, alkenyloxy, alkynyloxy, phenoxy, cycloalkyloxy, alkoxycarbonylalkyloxy alkoxycarbonylalkenyloxy, alkythiocarbonylalkyloxy, alkynyloxycarbonylalkyloxy, benzyloxycarbonylalkyloxy, trifluoromethyl, benzyloxy, alkenyl, cyanoalkyl, alkylcarbamoyloxy, benzyl, alkoxyalkyl, alkynyloxyalkyl, cycloalkylmethyloxy, alkoxyalkyloxy, phenethyloxy, cycloalkyloxycarbonylalkyloxy, pyrrolidinocarbonyl, phenylcarbonyl, ##STR2## n is an integer of from 0 to 3; and X is oxygen or sulfur.

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Shizuoka, Japan

Yukihiro Watase