Substituted triazolylmethyl-oxiranes and their use as intermediates for fungicides

摘要

A substituted triazolylmethyl-oxirane of the formula <IMAGE> in which R is optionally substituted alkyl, aryl or cycloalkyl is prepared by reacting a triazolyl-ketone of the formula <IMAGE> with (a) dimethyloxosulphonium methylide of the formula <IMAGE> or (b) trimethylsulphonium methylsulphate of the formula [(CH3)3S](+)CH3SO4(-) in the presence of a diluent. The end product can then be reacted with a phenol of the formula R''-OH to produce known fungicidally active compounds of the formula <IMAGE> in which R'' is optionally substituted phenyl.