Rh<sub>2</sub>(II)-Catalyzed Ester Migration to Afford 3<i>H</i>-Indoles from Trisubstituted Styryl Azides
作者:Chen Kong、Tom G. Driver
DOI:10.1021/ol503541z
日期:2015.2.20
Rh-2(II)-Complexes trigger the formation of 3H-indoles from ortho-alkenyl substituted aryl azides. This reaction occurs through a 4 pi-electron-5-atom electrocyclization of the rhodium N-aryl nitrene followed by a [1,2]-migration to afford only 3H-indoles. The selectivity of the migration is dependent on the identity of the beta-styryl substituent.