.ALPHA.-ARYLACRYLIC ACID DERIVATIVES, THEIR PREPARATION AND THEIR USE FOR CONTROLLING PESTS AND FUNGI

摘要

O.Z. 0050/41870 .alpha.-Arylacrylic acid derivatives of the general formula I ( I) where X is ethylene or ethenylene; Y is a direct bond or oxygen; R1 is an unsubstituted or substituted mononuclear or dinuclear aromatic or heteroaromatic system; R2 is cyano, nitro, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio; n is 1 or 2, and the radicals may be different if n is 2, and m is 0, 1 or 2, and the radicals may be different if m is 2, with the proviso that R1 is not phenyl when n is 1 and m is 0, their preparation, insecticides and fungicides containing them and methods for their use.