Enantioselective Construction of Highly Substituted Pyrrolidines by Palladium-Catalyzed Asymmetric [3+2] Cycloaddition of Trimethylenemethane with Ketimines
作者:Barry M. Trost、Steven M. Silverman
DOI:10.1021/ja102102d
日期:2010.6.23
The transition-metal catalyzed trimethylenemethane [3+2] cycloaddition provides a direct route to functionalized heterocycles. Herein, we describe a protocol for the reaction between 1-cyano-2-((trimethylsilyl)methyl)allyl acetate and a series of ketimines to generate highlysubstituted pyrrolidines. This methodology showcases a catalytic, asymmetric addition of a carbon nucleophile to ketimines, examples