HERBICIDAL ARYL AND HETEROARYL PYRIMIDINES

摘要

This invention relates to novel aryl and heteroaryl pyrimidine derivatives, shown below, substituted at the 2- and 4-position of the pyrimidine ring, their use as herbicides and agricultural compositions comprising the same. In formula (I), W is a substituted phenyl or a substituted 5- or 6-membered aromatic heterocyclic ring wherein one or two atoms of said ring are selected from oxygen, nitrogen and sulfur; W being substituted by at least R; R is CO2R4, CHO, CONH-O-CH2CO2R4, COSR4, CO2CHR5OCOR6 or CH=NOR4; R1, R2, R4, R5, R6 are as defined in the application; m = 1 or 2.