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US 4,059,433 AGranted
3-Alkoxyisothiazole derivatives as herbicides
AssigneeFMC Corporation
InventorLoren Kenneth Gibbons
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Abstract
A new class of herbicidal compounds consisting of 1-alkyl- and 1,1-dialkyl-3-(4-substituted-3-alkoxy-5-isothiazolyl)ureas and N-(4-substituted-3-alkoxy-5-isothiazolyl)alkanamides, in which the 4-substituent consists of alkoxycarbonyl, cyano and carbamoyl, exhibits preemergence and postemergence herbicidal activity, controlling effectively the growth of a wide spectrum of grassy and broad-leaved plant species. The synthesis of members of this class is described in detail, and the utility of representative compounds is exemplified.
Claims14
A substituted isothiazolylurea of the formula:
- ##STR3## in which R.sub.1 is alkyl of 1-5 carbon atoms;
- M is cyano or carbamoyl;
- Z is --NR.sub.2 R.sub.3 or R.sub.4, wherein R.sub.2 is alkyl of 1-5 carbon atoms, R.sub.3 is alkyl of 1-5 carbon atoms or hydrogen, R.sub.4 is alkyl of 1-5 carbon atoms.
Dependencies are inferred from the claim text.