Alpha-arylacrylic and derivatives, their preparation and their use as pesticides and fungicides

摘要

a-Arylacrylic acid derivatives of the general formula I in which the substituents have the following meaning: X C, N Y CR<4>, N, O, S Z CR<5>, N, O, S n 0 to 4 R<1> hydrogen, nitro, cyano, halogen; alkyl, alkoxy, halogenated alkyl, halogenated alkoxy or alkylthio, or in the case in which n denotes 2, 3 or 4, two adjacent substituents R<1> together are a 1,3-butadiene-1,4-diyl group, which can be substituted; R<2> alkyl; halogenated alkyl, halogen, cyano, nitro, alkoxycarbonyl, dimethylamino, R<2> additionally denotes hydrogen; R<3> hydrogen, optionally substituted alkyl; an optionally substituted cyclic system which, in addition to carbon atoms, can contain one to three heteroatoms; or an optionally substituted aromatic system which, in addition to carbon atoms, can contain one to four nitrogen atoms or one to three heteroatoms; R<4> and R<5> hydrogen, alkyl; halogenated alkyl, halogen, cyano, nitro, dimethylamino, alkoxycarbonyl and pesticides and fungicides containing these compounds.