Methylene- and ethylenedioxyphenylazoxycyanide derivatives as fungicides.

摘要

The invention provides compounds of general formula <CHEM> wherein m is 0 or 1; each of R<1> and R<2>, and R<3> and R<4> if present, independently represents a hydrogen or halogen atom or an optionally substituted alkyl, cycloalkyl or aryl group, or R<1> and R<2> together or R<3> and R<4> together represent an optionally substituted alkylene chain; X represents a cyano group, a group -COOH or a salt, ester or amido derivative thereof; Y represents an alkyl group or a halogen atom; and n represents 0, 1, 2 or 3; a process for their preparation; compositions containing such compounds and their use as fungicides.