PROCESS FOR PRODUCING BENZENSULPHONAMIDES

摘要

Benzenesulfonamide derivs. (I; R1 = H or alkyl ; R3 = alkyl; W1W2 = lower alkylene group), which have antiemetic and psychotropic activities, were prepd. by reaction of salicylic acid derivs. (IV) with sulfonamide derivs. (III; R2 = org. residues) in the presence of trivalent org. p-compd. compd. (III) was prepd. by treating amino compd. (II) with org. disulfide.