Rearrangement of Allylic and Propargylic Alcohols Catalyzed by the Combined Use of tetrabutylammonium perrhenate (VII) and p-toluenesulfonic acid
作者:Koichi Narasaka、Hiroyuki Kusama、Yujiro Hayashi
DOI:10.1016/s0040-4020(01)88874-8
日期:1992.1
Allylic rearrangement and/or dehydration reaction of allylic alcohols proceeds smoothly by the use of catalytic amounts of tetrabutylammonium perrhenate and p-toluenesulfonic acid hydrate. Treatment of propargylic alcohols with the catalysts at room temperature affords the rearranged products, α,β-unsaturated carbonyl compounds, while, β,γ-unsaturated ketones are obtained as main products by the reaction
通过使用催化量的高丁基酸四丁铵和对甲苯磺酸水合物,使烯丙醇的烯丙基重排和/或脱水反应顺利进行。在室温下用催化剂处理炔丙醇可得到重排产物α,β-不饱和羰基化合物,而β,γ-不饱和酮是通过在1,2-二氯乙烷中回流反应得到的主要产物。还描述了该催化体系在某些合成中间体的制备中的应用。