Salicylohydrazide derivatives, processes and intermediates for their preparation, compositions comprising them, and their use

摘要

Salicylohydrazide derivatives of the formula Iin which the index and the substituents have the following meanings:X is halogen, NO2, cyano, alkyl or alkoxy;m is 0, 1, 2 or 3, it being possible for the substituents X to differ from each other if n is greater than 1;R1 is NO2, NH2 or NH-CO-A;A is hydrogen, alkyl, alkoxy, NH2, NHCH3 or N(CH3)2;R2 is hydrogen, cyano, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy or alkylthio;it being possible for the hydrocarbon radicals to be unsubstituted or substituted,R3 is phenyl, naphthyl, cycloalkyl, 5-membered or 6-membered hetaryl or 5-membered or 6-membered heterocyclyl containing one to three N atoms and/or one O or S atom or one or two O and/or S atoms, the ring systems being unsubstituted or substituted;the preparation of these compounds, compositions comprising them, and their use for controlling harmful fungi.