Asymmetric Brønsted Acid-Catalyzed Friedel-Crafts Reactions of Indoles with Cyclic Imines - Efficient Generation of Nitrogen-Substituted Quaternary Carbon Centers
作者:Magnus Rueping、Sadiya Raja、Alberto Núñez
DOI:10.1002/adsc.201000952
日期:2011.3.7
A new enantioselective Brønsted acid‐catalyzed Friedel–Crafts reaction of indole with cyclic imines has been develeoped. This organocatalytic reaction provides for the first time optically active indolindolinone derivatives in high yields and with excellent enantioselectivities (up to 91% ee) under mild reaction conditions.
已开发出一种新的对映选择性布朗斯台德酸催化的吲哚与环状亚胺的弗瑞德-克来福特反应。这种有机催化反应首次在温和的反应条件下,以高收率和优异的对映选择性(高达91%ee)提供了光学活性的吲哚吲哚酮衍生物。