申请人:Ciba-Geigy Corporation
公开号:US05162547A1
公开(公告)日:1992-11-10
An improved process for the preparation of glycidyl ethers of formula I ##STR1## wherein Q is an aliphatic, cycloaliphatic or araliphatic radical of a valency m, R is --H or --CH.sub.3, and m is an integer from 1 to 10, by reacting an alcohol of formula Q--(OH).sub.m with m mol of an epihalohydrin of formula II ##STR2## in the presence of a catalyst to the corresponding halohydrin ether, and dehydrohalogenating said halohydrin ether with an alkali metal hydroxide to give a compound of formula I, wherein Q, m and R are as defined above and Hal is halogen, which process comprises using as catalyst a) tin difluoride or b) a divalent tin halide in conjunction with a co-catalyst.
一种改进的制备式I的环氧乙醚的方法,其中Q是价为m的脂肪、环脂或芳基,R是-H或-CH3,m是1至10之间的整数,通过将式Q-(OH)m的醇与m摩尔的式II的环氧卤代烷反应,在催化剂存在下形成相应的卤代醇醚,然后用碱金属氢氧化物脱卤代生成式I的化合物,其中Q、m和R的定义如上所述,Hal是卤素,该方法包括使用催化剂a) 二氟化锡或b) 二价锡卤化物与辅助催化剂一起。