Herbicidal 3-substitutedbenzoyl-bicyclo[4,1,0]heptane-2, 4-dione derivatives
AssigneeNippon Soda Co., Ltd.
InventorsHiroyuki Adachi, Katsunori Tanaka, Takashi Kawana, Hideo Hosaka
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Abstract
This invention relates to 3-substitutedbenzoyl-bicyclo[4,4,0]heptane-2,4-dione with high herbicidal activity represented by formula I ##STR1## wherein one of R.sub.1 or R.sub.2 represents methyl and the other represents hydrogen or lower alkyl or alkoxycarbonyl or its salt.
Claims16
Compound of the formula
- or an optical isomer or a salt thereof, wherein one of R.sub.1 or R.sub.2 represents methyl and the other represents hydrogen or lower alkoxycarbonyl.
Compound of the formula ##STR12## or an optical isomer or a salt thereof, wherein R.sub.1 is methyl and R.sub.2 is ethoxycarbonyl.
Compound of the formula ##STR13## or an optical isomer or a salt thereof, wherein R.sub.1 is methyl and R.sub.2 is hydrogen.
Herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##STR14## or an optical isomer or a salt thereof, wherein one of R.sub.1 or R.sub.2 represents methyl and the other represents hydrogen or lower alkoxycarbonyl.
Herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##STR15## or an optical isomer or a salt thereof, wherein R.sub.1 is methyl and R.sub.2 is ethoxycarbonyl, and an inert carrier therefor.
Herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##STR16## or an optical isomer or a salt thereof, wherein R.sub.1 is methyl and R.sub.2 is hydrogen, and an inert carrier therefor.
Compound 3-(3-methoxy-2-methyl-4-methylsulfonylbenzoyl)-trans-5-ethoxycarbonyl-cis- 5-methyl-cis-bicyclo[4,1,0]heptane-2,4-dione.
Compound 3-(3-methoxy-2-methyl-4-methylsulfonylbenzoyl)-cis-5-methyl-cis-bicyclo[4, 1,0]heptane-2,4-dione.
Compound 3-(3-methoxy-2-methyl-4-methylsulfonylbenzoyl)-trans-5-methyl-cis-bicyclo[ 4,1,0]heptane-2,4-dione.
Dependencies are inferred from the claim text.