| 摘要 |
<p>According to the novel method, microbicidally active 2 (1,2, 4 triazol 1 yl) ethanols of formula (I), wherein A1, A2, R1, R2, R3 and R4 have the meanings given in the description, are produced by reacting hydrazine derivatives of formula (II) with N dihalogenmethyl formamidinium halogenide of formula (III), wherein X represents chorine or bromine, optionally in the presence of a diluting agent.</p> |
