Herbicidal new thiazolyl ether and thioether derivatives

摘要

Herbicidally active compounds of the formula <IMAGE> in which R1 represents hydrogen or alkyl, R2 represents hydrogen or alkyl, with the proviso that R1 and R2 do not simultaneously represent hydrogen, X represents oxygen or sulphur, R3 represents hydrogen, halogen, nitro, amino, cyano, alkyl, halogenoalkyl, alkoxy or halogenoalkoxy, wherein the radicals R3 can be identical or different, n represents a number from 1-4, U represents oxygen or sulphur, V represents a <IMAGE> group, R4 and R5 independently of one another repreesnt hydrogen, alkyl, alkoxyalkyl or halogenoalkyl, W represents a radical <IMAGE> D represents carbon or silicon, E represents oxygen or sulphur, and R6 through R12 can have various meanings. The starting materials wherein -U-V-W together are OH are also new.