Phenyl-acrylic acid ester derivatives, process for their preparation and their use as fungicides.

摘要

Compounds of formula: <CHEM> and stereoisomers thereof, wherein W is an unsubstituted pyridyl or unsubstituted pyrimidinyl group linked to A by any one of its ring carbon atoms; A is either an oxygen atom or S(O)n, wherein n is 0, 1 or 2; X; Y and Z, which are the same or different, are hydrogen or halogen atoms, or hydroxy, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted aryloxy, optionally substituted aralkyl, optionally substituted arylalkoxy, optionally substituted acyloxy, optionally substituted amino, optionally substituted acylamino, nitro, cyano, -CO2R<3>, -CONR<4>R<5>, -COR<6> or-S(O)nR<7> (wherein n is 0, 1 or 2) groups, or any two of the groups X, Y and Z, when they are in adjacent positions on the phenyl ring, join to form a fused ring, either aromatic or aliphatic, optionally containing one or more heteroatoms, provided that when A is oxygen, X is hydrogen, and R<1> and R<2> are both methyl, Y and Z are not both hydrogen, Y is not F, Cl, methyl, nitro, 5-CF3, 5-SCH3 or 4-(CH3)2N if Z is hydrogen and Y and Z together are not 3-nitro-5-chloro, 3,5-dinitro, 4,5-dimethoxy or 4,5-methylenedioxy; R<1> and R<2>, which are the same or different, are optionally substituted alkyl groups; and R<3>, R<4>, R<5>, R<6> and R<7> which are the same or different, are hydrogen atoms or optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, or optionally substituted aralkyl groups; and metal complexes thereof. The compounds are useful as fungicides.