Ling Zhou, Jie Chen, C. Tan
May 3, 2011
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Journal
Journal of the American Chemical Society
Abstract
A facile and efficient enantioselective bromoaminocyclization of unsaturated sulfonamides has been developed using an amino-thiocarbamate catalyst. A range of enantioenriched pyrrolidines were prepared with up to 99% yield and 99% ee. The corresponding lactams could be obtained through oxidation of the pyrrolidines.