FUNGICIDAL DERIVATIVES OF TRIAZOLE PYRIMIDINE, METHOD OF OBTAINING NOVEL DERIVATIVES OF TRIAZOLE PYRIMIDINE AND FUNGICIDE AS SUCH

摘要

This invention relates to certain triazolopyrimidine derivatives of the general formula in which R<1> represents an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, cycloalkyl, bicycloalkyl or heterocyclyl group; R<2> represents a hydrogen atom or an alkyl group; or R<1> and R<2> together with the interjacent nitrogen atom represent an optionally substituted heterocyclic ring; R<3> represents an optionally substituted aryl group; and R<4> represents a hydrogen or halogen atom or a group -NR<5>R<6> where R<5> represents a hydrogen atom or an amino, alkyl, cycloalkyl or bicycloalkyl group and R<6> represents a hydrogen atom or an alkyl group; processes for their preparation; compositions containing such compounds and their use as fungicides.