Organocatalyzed Cascade Reactions of Cyclic β-Enamino Esters and α,β-Unsaturated Aldehydes Leading to Indoloquinolizidines and Benzoquinolizidines
作者:Xiaoyu Wu、Linlin Nie、Huihui Fang、Jie Chen、Weiguo Cao、Gang Zhao
DOI:10.1002/ejoc.201101105
日期:2011.11
Organocatalyzed cascade reactions between cyclic β-enamino esters and α,β-unsaturated aldehydes have been developed. They provide highly substituted indolo[2,3-a]quinolizidines and benzo[a]quinolizidines in moderate to good yields and with good to excellent enantioselectivities. Both aromatic and aliphatic α,β-unsaturated aldehydes react readily with enamino esters to furnish the desired products.
已经开发了环状 β-烯氨基酯和 α,β-不饱和醛之间的有机催化级联反应。它们以中等至良好的产率和良好至极好的对映选择性提供高度取代的吲哚并[2,3-a]喹啉齐啶和苯并[a]喹唑啉。芳香族和脂肪族 α,β-不饱和醛都容易与烯氨基酯反应以提供所需的产品。