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US 4,302,238 AGranted
Herbicidal isoxazolidine-3,5-diones
AssigneeFMC Corporation
InventorMarvin J. Konz
Life of this patent
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Abstract
2-Substituted isoxazolidine-3,5-diones and isoxazolidine-3-one-5-thiones exhibit herbicidal activity, controlling effectively the growth of a wide spectrum of grassy and broad-leaved plant species. The preparation and herbicidal activity of the compounds is exemplified.
Claims21
A compound of the formula ##STR2## in which R is methyl;
- R' is methyl or ethyl;
- W is oxygen or sulfur;
- R" is --CH.sub.2 --Z;
- and
- Z is phenyl substituted with fluorine, chlorine, or bromine in the 2-position, and which may be substituted with fluorine, chlorine, or bromine in the 4- or 5-position, or with methylenedioxy in the 4,5-position.
2 more elements
Dependencies are inferred from the claim text.