Copper-Promoted and Copper-Catalyzed Intermolecular Alkene Diamination
作者:Fatima C. Sequeira、Benjamin W. Turnpenny、Sherry R. Chemler
DOI:10.1002/anie.201003499
日期:2010.8.23
Simply copper: Copper(II)‐promoted intra‐ and intermolecular olefin diaminations bring together two differently functionalized amines into a vicinal relationship. High diastereoselectivity was obtained with chiral alkenes and results of the asymmetric catalysis are promising.
An enantioselective consecutive cyclization/coupling process, catalyzed by palladium is reported. Stereoinduction arises from an enantioselective carbopalladation, generating an intermediate which promotes a nucleopalladation step. The dual cyclization sequence was compatible with a variety of alkyne-tethered oxygen- and nitrogen-centered nucleophiles, and a variety of alkenyl-tethered aryl iodides