HERBICIDAL SULFONAMIDES, PREPARATION AND USE THEREOF, COMPOSITIONS CONTAINING THEM, INTERMEDIATES THEREFOR AND PREPARATION OF SUCH INTERMEDIATES

摘要

Compounds of the formulae wherein: A is selected from certain substituted amino, haloalkoxy or aryloxy groups: R@ is a hydrogen, halogen, nitro or various organic groups; R@@ is H, Cl, F, Br, CH3 or OCH3; R4 and R@ are independently H or CH3 but not both CH3; R6 is a pyrimidyl or triazinyl residue which may be substituted; W is oxygen or sulfur; Z is CH or N; X1 and Y1 are H, CH3 or various alkoxy groups, but cannot both be H; and B is selected from various aliphatic or aromatic organic groups; and their agriculturally suitable salts, exhibit potent herbicidal activity. Some may also exhibit plant growth regulant activity. The compounds (I) and (IA) can be formulated for use in conventional manner. The compounds (I) can be made inter alia by reacting an isocyanate or isothiocyanate of general formula