Chiral pyrrolidines and piperidines from enantioselective rhodium-catalyzed cascade arylative cyclization

Org Lett. 2015 Apr 3;17(7):1720-3. doi: 10.1021/acs.orglett.5b00493. Epub 2015 Mar 12.

Abstract

A new rhodium-catalyzed asymmetric arylative cyclization of nitrogen-tethered alkyne-enoate with arylboronic acids is described. In this process two new carbon-carbon bonds and one stereocenter are formed, providing access to pyrrolidines and piperidines with good enantioselectivities by to the use of C1-symmetric chiral monosubstituted diene ligands.