Compounds 5,6-dialkyl-7-aminotriazolopyrimidines, their use for controlling harmfull fungi

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.