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US 5,858,923 AGranted
Hexahydropyridazine derivative and herbicide containing the same as active ingredient
AssigneeAgro-Kanesho Co., Ltd.
InventorsKiyoshi Takasuka, Hideyo Fujii, Seigo Koura, Noriyoshi Katsuyama, Yukiyo Shigeno
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Abstract
The present invention provides a hexahydropyridazine derivative of the formula (I): ##STR1## wherein R.sup.1 represents an alkynyloxy group, a cycloalkoxy group or an alkoxycarbonylalkylthio group, R.sup.2 represents an alkyl group, a phenyl group or a benzyl group, and X represents a halogen atom. This compound exhibits an excellent herbicidal effect on various weeds in treatment of field soil, foliage treatment and flooding treatment of paddy field, and has an excellent selectivity toward the weeds but not the crop.
Claims20
A compound of formula (I):
- ##STR10## wherein R.sup.1 represents a C.sub.2 -C.sub.8 alkynyloxy group, a C.sub.3 -C.sub.8 cycloalkoxy group, and an alkoxycarbonylalkylthio group wherein alkoxy has 1 to 12 carbon atoms and alkyl has 1 to 6 carbon atoms, R.sup.2 represents a C.sub.1 -C.sub.15 alkyl group, a phenyl group or a benzyl group, and X represents a halogen atom.
Dependencies are inferred from the claim text.