| abstract |
Novel compounds of the formulan wherein R is a halogen, Q is hydrogen, a substituted or unsubstituted hydrocarbon, R 1 S, R 2 CO,n (wherein R 1 is a substituted or unsubstituted hydrocarbon orn R 2 is hydrogen or a substituted or unsubstituted hydrocarbon, R 3 is a substituted or unsubstituted hydrocarbon, R 4 is a lower alkyl group, X is oxygen or an imino group which may be substituted by a lower alkyl, and each of Y and Z is oxygen or sulfur); which are useful as herbicides. |