Heterocyclo-hydroxyalkyl-azolyl derivatives and use as fungicides

A heterocyclyl-hydroxyalkyl-azolyl derivative of the formula ##STR365## in which Az represents 1,2,4-triazol-1-yl, 1,2,4-triazol-4-yl or imidazol-1-yl;

• the 1, 3- dioxan-5-yl is optionally substituted by identical or different substituent selected from the group consisting of alkyl with 1 to 4 carbon atoms, and phenyl and phenoxyalkyl with 1 to 4 carbon atoms, and phenyl and phenoxyalkyl with 1 to 4 carbon atoms in the alkyl part, each of which is optionally substituted on the phenyl by identical or different substituents selected from the group consisting of halogen, alkyl with 1 to 4 carbon atoms, alkoxy and alkylthio with in each case 1 or 2 carbon atoms and halogenoalkyl, halogenoalkoxy and halogenoalkythio with in each case 1 or 2 carbon atoms and 1 to 5 identical or different halogen atoms;
• R represents straight-chain or branched alkyl with 1 to 7 carbon atoms, or phenyl, phenylalkyl with 1 to 4 carbon atoms in the alkyl part, phenoxy- or phenylthio-alkyl with in each case 1 to 4 carbon atoms in the alkyl part or phenylethenyl each of which is optionally substituted on the phenyl by identical or different substituents selected from the group consisting of halogen, alkyl with 1 to 4 carbon atoms, alkoxy and alkylthio with in each case 1 or 2 carbon atoms, nitro, halogen alkyl, halogenoalkoxy and halogenoalkylthio with in each case 1 or 2 carbon atoms and 1 to 5 identical or different halogen atoms, hydroximinoalkyl with 1 to 4 carbon atoms, alkoximinoalkyl with 1 to 4 carbon atoms in each alkyl part, and phenyl, phenoxy, benzyl and benzyloxy, each of which is optionally substituted by halogen or alkyl with 1 or 2 carbon atoms;
• or R represents cycloalkyl with 5 to 7 carbon atoms, which is in each case optionally monosubstituted or polysubstituted by identical or different alkyl radicals with 1 to 4 carbon atoms, or cycloalkyl-methy or -ethyl with 5 or 7 carbon atoms in the cycloalkyl part, or cyclothexylethenyl, or, alkenyl with 2 to 6 carbon atoms, 2-furyl, naphthyloxymethyl, 1,2,4-triazol-1-yl-methyl, 1,2,4-triazol-4-yl-methyl, imidazol-1-yl-methyl or pyrazol-1-yl-methyl,
• R' represents hydrogen, alkyl which has 1 to 4 carbon atoms and is optionally substituted by phenyl, it being possible for the phenyl radical to be substituted by the substituents on phenyl mentioned under R, or alkenyl with 2 to 4 carbon atoms.
• or an addition product thereof with an acid or metal salt.