Use Of 5-Alkyl-6-Phenylalkyl-7-Aminoazolopyrimidines, Novel Azolopyrimidines, Processes For Their Preparation And Compositions Comprising Them

The use of an 5-alkyl-6-phenylalkyl-7-aminoazolopyrimidine of the formula I

• in which the substituents are as defined below:
• Y is C1-C6-alkylene, C2-C6-alkenylene or C2-C6-alkynylene, optionally substituted by 1 to 4 C1-C6-alkyl groups;
• R1 is halogen, cyano, nitro, hydroxyl, mercapto, C1-C6-alkyl, C1-C4-haloalkyl, C2-C6-alkenyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C2-C6-alkenyloxy, C3-C6-alkynyloxy, C1-C6-alkylthio, NRARB, C1-C6-alkylcarbonyl, phenyl, naphthyl, or a five- or six-membered saturated, partially unsaturated or aromatic heterocycle which contains one to four heteroatoms from the group consisting of O, N and S;
• RA, RB are hydrogen, C1-C6-alkyl or C1-C6-alkylcarbonyl;
• n is zero, 1, 2, 3 or 4;
• R2 is C2-C6-alkyl, C2-C4-alkenyl, C3-C6-cycloalkyl, C1-C12-alkoxy-C1-C12-alkyl or C1-C12-alkylthio-C1-C12-alkyl;
• R3 is hydrogen, halogen, cyano, NRARB, hydroxyl, mercapto, C2-C6-alkyl, C1-C6-haloalkyl, C3-C8-cycloalkyl, C1-C6-alkoxy, C1-C6-alkylthio, C3-C8-cycloalkoxy, C3-C8-cycloalkylthio, carboxyl, formyl, C1-C10-alkylcarbonyl, C1-C10-alkoxycarbonyl, C2-C10-alkenyloxycarbonyl, C2-C10-alkynyloxycarbonyl, phenyl, phenoxy, phenylthio, benzyloxy, benzylthio, C1-C6-alkyl-S(O)m—;
• m is 0, 1 or 2;
• A is N or C—Ra;
• Ra is hydrogen or C1-C6-alkyl;
• where the carbon atoms in Y, R1, R2, R3 and Ra may carry one to three groups Rb:
• Rb is halogen, cyano, nitro, hydroxyl, C3-C6-cycloalkyl, C1-C6-alkoxy, C1-C6-alkylthio or NRARB;
• for controlling phytopathogenic harmful fungi.