作者:Kevin M. Belyk、Charlotte D. Beguin、Michael Palucki、Nelu Grinberg、Jimmy DaSilva、David Askin、Nobuyoshi Yasuda
DOI:10.1016/j.tetlet.2004.02.114
日期:2004.4
The asymmetric synthesis of 1,3,4-trisubstituted pyrrolidines was accomplished in two steps from readily available starting materials. A 1,3-dipolar cycloaddition of an azomethine ylide to a propiolate ester followed by a Rh-catalyzed asymmetric 1,4-arylation of the resulting pyrroline with an arylboronic acid provided the desired 1,3,4-trisubstituted pyrrolidine products in good to excellent enantioselectivities. (C) 2004 Elsevier Ltd. All rights reserved.