Pyridinylurea compounds and agricultural uses

Abstract From the Canadian patent

Pyridinylurea compounds of the formula and acid addition salts thereof; wherein n is 0 or 1; R is cycloalkyl, alkenyl, or an alkyl group optionally substituted with halogen, hydroxy cyclo-, alkyl, alkoxy, dialkylamino or phenyl: R1 is hydrogen or alkyl; and R and R1 together with the nitrogen atom of the NRR1 group optionally define a heterocycle of 4 to 6 ring carbon atoms; provided that when n is 0, A is 0, 1 or 2 and X is selected from a substituent X1 at the 2-position and a substituent Y at the 6-position, wherein X1 is hydrogen, halogen, haloalkyl, alkoxy, alkylthio or alkylsulfonyl, Y is hydrogen, halogen, haloalkyl alkoxy, alkylthio or alkylsulfonyl; at least one of X1 and Y is …