Rhodium-Catalyzed Dynamic Kinetic Asymmetric Transformations of Racemic Allenes by the [3+2] Annulation of Aryl Ketimines
作者:Duc N. Tran、Nicolai Cramer
DOI:10.1002/anie.201304919
日期:2013.9.27
Racemization required: Rhodium(I)‐catalyzed CH activation directed by unprotected ketimines initiates selective [3+2] cycloaddition with allenes, providing access to highly substituted indenylamines. The reaction proceeds through the dynamic kinetic asymmetric transformation of racemic allenes. The catalyst controls the enantio‐ and diastereoselectivity, the regioselectivities of the CH activation and allene