Inventors:
Maged M. Fawzi - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C10376
Abstract:
Herbicidal compounds of the formula: ##STR1## where X is oxygen or sulfur; R. sub. 1 is methyl or ethyl; R. sub. 2 is alkyl of 1-4 carbon atoms, methoxy or cyanomethyl; and R. sub. 1 and R. sub. 2 together can be (CH. sub. 2). sub. 4 ; provided that when R. sub. 2 is alkyl of 3 or 4 carbon atoms, methoxy or cyanomethyl, R. sub. 1 cannot be ethyl.