Aralkylphenylureas and herbicides containing these

Abstract From the Canadian patent

Aralkylphenylureas of the formula where R1 and R2 are hydrogen, alkoxy or unsubstituted or substituted alkyl, cycloalkyl, alkenyl or alkynyl with the, proviso that when one of the substituents R1 and R2 is hydrogen, the other one cannot by hydrogen, or R1 and R2 together are unsubstituted or substituted alkylene which may or may not be interrupted by oxygen or sulfur, Y is hydrogen alkyl, halogen, alkoxy or haloalkyl, A is unsubstituted or substituted alkylene, Z is hydrogen, alkyl, haloalkyl alkoxyalkyl, cycloalkyl, aralkyl, aryl aryloxy, halogen, a C4H4 chain, which is fused to the benzene ring to give a substituted or unsubstituted naphthyl ring, alkoxy, haloalkoxy alkylthio, …