Enantioselective Rhodium(I)-Catalyzed [3+2] Annulations of Aromatic Ketimines Induced by Directed CH Activations
作者:Duc N. Tran、Nicolai Cramer
DOI:10.1002/anie.201105766
日期:2011.11.18
selectivity: Highly substituted indenylamines can be obtained with high enantioselectivity by formal [3+2] additions of aryl ketimines with internal alkynes. These rhodium(I)‐catalyzed processes proceed by selective CH activation of one of the two arene substituents, regioselective carbometalation of the alkyne, and enantioselective addition across the imine.