The Reductive Conversion of Some Cyclic and Acyclicvic-Epoxides to Alcohols by Means of Lithium Aluminium Hydride/Aluminium Trichloride
作者:Vladimir Andrejevi?、Mira Bjelakovi?、Milan M. Mihailovi?、Mihailo Lj. Mihailovi?
DOI:10.1002/hlca.19850680727
日期:1985.11.13
Unsubstituted medium-ring 1,2-epoxycycloalkanes and certain vic-epoxyalkanes are reduced to the corresponding alcohols very slowly when LiAlH4 alone is used as reducing agent. However, the combination of LiAlH4 and AlCl3, in a 2:1 molar ratio (with respect to 1 mol-equiv. of epoxide) used in refluxing Et2O, greatly enhances these reductions, rendering them of interest for practical purposes.
未取代的介质环-1,2- epoxycycloalkanes和某些VIC -epoxyalkanes被时的LiAlH非常缓慢地还原成相应的醇4单独用作还原剂。但是,用于回流Et 2 O的摩尔比为2:1的LiAlH 4和AlCl 3的组合(相对于1摩尔当量的环氧化物)极大地提高了这些还原率,使它们成为实用目的。