Arylamine derivatives and use as microbicides

摘要

The invention relates to novel microbicides of the general formula I wherein R is hydrogen or methyl, Ar is a phenyl or alpha -naphthyl group which is substituted by NH2 or NO2 and further radicals, W is a cyano, ester, alkenyl or alkynyl group, and B is alkyl, alkenyl, cyclopropyl, 2-furyl, 2-tetrahydrofuryl, beta -(alkoxy)ethyl, triazolylmethyl, methylsulfonylmethyl, alkoxymethyl, alkenyloxymethyl, alkynylmethyl, alkylthiomethyl, alkenylthiomethyl, alkynylthiomethyl, -OSO2-alkyl, -OSO2NH(alkyl) or -N(alkyl)2. The invention also describes plant protection compositions which contain these compounds, a process for the production of the novel compounds and compositions, and a method of controlling phytopathogenic microorganisms which comprises the use thereof.