5,6-Dialkyl-7-aminotriazolopyrimidines, their preparation and their use for controlling harmful fungi, and compositions comprising these compounds

摘要

5,6-Dialkyl-7-aminotriazolopyrimidines of the formula I; in which the substituents are as defined below:R¹ is alkyl or alkoxyalkyl, where the aliphatic groups may be substituted as defined in the description;R² is CHR³CH₃, cyclopropyl, CH═CH₂ or CH₂CH═CH₂; R³ is hydrogen, CH₃ or CH₂CH₃;processes for preparing these compounds, compositions comprising them and their use for controlling phytopathogenic harmful fungi.