Triazole derivatives, their preparation and their use as fungicides.

摘要

Compounds of formula (I): <CHEM> in which: Ar is optionally substituted phenyl; R<1> is hydrogen or alkyl; X is optionally unsaturated alkylene, cycloalkylene or both; m is 0 or 1; -Yn-R<2> is azido, phthalimido, 1-oxo-2,3-dihydro-2-isoindolyl, protected hydroxy or -OSO2R<4> (in which R<4> is alkyl group, haloalkyl or optionally substituted phenyl); or Y represents a group of formula -N(R<5>)CO-, -N(R<5>)CO-CH=CH-, -O-CO-, -O-CO-CH=CH-, -S-CO- or -S-CO-CH=CH- (in which R<5> is hydrogen or alkyl); n is 0 or 1; R<2> is alkyl, haloalkyl or optionally substituted phenyl, naphthyl or heterocyclic; and R<3> is hydrogen; or R<3> and -Xm-Yn-R<2> together are a group of formula (II): <CHEM> in which R<2> is as defined above, p is 0 or 1, and q is 0 or 1; and acid addition salts thereof are fungicides, which find considerable value in the eradication of fungi in both agriculture and medicine.