Triple 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 C-H activation of one of the two arene substituents, regioselective carbometalation of the alkyne, and enantioselective addition across the imine. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Alkynes are found in a multitude of natural or synthetic bioactive compounds. In addition to the capacity of these chemical motifs to impact the physicochemical properties of a molecule of interest, the well-established reactivity of alkynes makes them ...
Jérôme Waser, Nieves Pilar Ramirez Hernandez