申请人:Imperial Chemical Industries Limited
公开号:US04102896A1
公开(公告)日:1978-07-25
A process for preparing a 5-(2,2-dihalovinyl)-4,4-dimethyl-2-oxotetrahydrofuran of formula: ##STR1## wherein X and Z are each either chlorine or bromine, which comprises the step of treating a compound of formula: ##STR2## with an excess of a base selected from alkali metal hydroxides and chemical equivalents thereof.
一种制备公式为:##STR1## 其中X和Z均为氯或溴的5-(2,2-二卤乙烯基)-4,4-二甲基-2-氧代四氢呋喃的方法,包括用过量的从碱金属氢氧化物和化学当量中选择的碱基处理公式为:##STR2## 的化合物的步骤。