PYRAZOLYLSULFONYLUREAS AND ISOXAZOLYLSULFONYLUREAS

摘要

of the disclosure: Compounds of the general formula (I) < IMG > ( I ) wherein X is oxygen or NR6, Y is CH or nitrogen, R1 and R2 are hydrogen, halogen, (substituted) alkyl, (substituted) alkenyl, (substituted) alkynyl, OH, (substituted) alkoxy, alkenyloxy or alkynyloxy, radicals of alkanecarboxylic acids, alkanesulfonic acids, alkanesulfenic acids and alkanesulfinic acids and of their amides, (substituted) phenyl, benzyl, (substituted) hydroxycarbonyl or (substituted) aminocarbonyl, R3 is hydrogen or alkyl and R4 and R5 are hydrogen, (substituted) alkyl or (substituted) alkoxy, halogen, alkylthio, monoalkylamino or dialkylamino, and their salts, exert an advantageous herbicidal action against monocotyledonous or dicotyledonous harmful plants and are therefore suitable for use in large-scale crops. Moreover, they have a plant growth-regulating action.