| 摘要 |
Compounds of the formula I and their acid addition salts represent valuable microbicides and can be used in crop protection in the form of compositions for preventing and controlling attack by microorganisms. <IMAGE> In the formula, X represents oxygen or sulphur, Het represents a 5- or 6-membered heterocycle which has one to three identical or different hetero atoms selected from amongst nitrogen, oxygen and sulphur and which is unsubstituted or monosubstituted, disubstituted or trisubstituted by identical or different substituents selected from the series comprising halogen, cyano, nitro, C1-C4-alkyl, C3-C6-cycloalkyl, C1-C4-alkoxy, C1-C3-haloalkoxy and trifluoromethyl, B represents -CH2-CH(R2)-CH2- or -CH=C(R2)-CH2- or -CH2-C(R2)=CH-, R1 represents halogen, C1-C4-alkyl, C1-C4-alkoxy, n represents 0 to 2, m represents 0 or 1, R2 represents hydrogen or C1-C4-alkyl, R3 represents hydrogen or C1-C3-alkyl, R4 represents hydrogen, hydroxyl, C1-C3-alkoxy or else represents C1-C4-alkyl which is unsubstituted or substituted by hydroxyl or C1-C3-alkoxy, Z represents oxygen, sulphur or -CH2-. |
