申请人:——
公开号:US20030018201A1
公开(公告)日:2003-01-23
According to a novel process, microbicidally active 2-(1,2,4-triazol-1-yl)-ethanols of the formula
1
in which
A
1
, A
2
, R
1
, R
2
, R
3
and R
4
are as defined in the description, can be prepared by reacting hydrazine derivatives of the formula
2
with N-dihalogenomethyl-formamidinium halide of the formula
3
in which
X represents chlorine or bromine,
if appropriate in the presence of a diluent.
根据一种新的工艺,可以通过将公式1中A1、A2、R1、R2、R3和R4如描述中所定义的肼衍生物与公式3中的N-二卤甲基甲酰胺盐酸盐(其中X代表氯或溴,必要时在稀释剂存在下反应)反应,制备出具有微生物杀灭活性的2-(1,2,4-三唑-1-基)-乙醇。