Highly enantioselective trapping of zwitterionic intermediates by imines
作者:Huang Qiu、Ming Li、Li-Qin Jiang、Feng-Ping Lv、Li Zan、Chang-Wei Zhai、Michael P. Doyle、Wen-Hao Hu
DOI:10.1038/nchem.1406
日期:2012.9
trap the zwitterionic intermediates. Here, we describe the use of imines, activated by chiral organocatalysts, and a highly efficient integrated rhodium and chiralBrønstedacid co-catalysed process to trap zwitterionic intermediates that have been proposed previously to undergo a formal C–H insertion reaction, allowing us to obtain polyfunctionalized indole and oxindole derivatives in a single step