Herbicidal benzoxazinone- and benzothiazinone-substituted pyrazoles

摘要

The invention herein relates to titled compounds having the structure <IMAGE> wherein the R1-(R4)n members are as defined in the claims. Characteristic features of these compounds are the haloalkyl R2 radical and cyclization of two R4 members at the meta and para positions of the phenyl ring to form a substituted benzoxazinone ring fused to the phenyl or benzthiazinone ring. Such compounds are useful as active ingredients in herbicidal compositions to control undesirable weeds in various crops.