摘要
在无溶剂条件下,硅胶吸附的水合三氯化铈-碘化钠(CeCl3·7H2O-NaI)可以作为路易斯(Lewis)酸有效催化活泼亚甲基化合物和烯丙醇的直接烷基化反应,得到较高产率的烷基化产物(62%~90%).该催化剂经过简单处理至少可以循环利用四次,第四次循环后产率达到78%.
Alkylation of 1,3-dicarbonyl compounds with allylic alcohols was performed smoothly in good yields (62%~90%) under solvent-free conditions with SiO2-supportted CeCl3·7H2O-NaI as a highly efficient and recyclable catalyst.This catalyst system could be easily recovered and then reused in the alkylation at least four times without significant loss of catalytic activity.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2009年第10期1664-1667,共4页
Chinese Journal of Organic Chemistry
基金
南京理工大学科研启动基金资助项目
关键词
三氯化铈
烷基化
无溶剂
催化
cerium chloride
alkylation
solvent-free
catalysis