Issue 21, 2013

Axial-to-central chirality transfer in cyclization processes

Abstract

Substrates, bearing axial chirality, can cyclize intra- or inter-molecularly with concomitant transfer of axial-to-central chirality to produce at least one stereocenter. In order to satisfy a strict definition of axial-to-central chirality transfer, the initial axial chirality must be lost during the cyclization process. Highly functionalized enantiopure carbocycles and heterocycles were prepared using this strategy. The transformations of configurationally stable substrates take place with high regio- and stereo-selectivity. Selected examples involving allenes, biaryls, arylamides and transient axially chiral short-lived species are discussed. Special attention is focused on the mechanistic rationale of the chirality transfer.

Graphical abstract: Axial-to-central chirality transfer in cyclization processes

Article information

Article type
Review Article
Submitted
03 Jun 2013
First published
06 Aug 2013

Chem. Soc. Rev., 2013,42, 8434-8466

Axial-to-central chirality transfer in cyclization processes

D. Campolo, S. Gastaldi, C. Roussel, M. P. Bertrand and M. Nechab, Chem. Soc. Rev., 2013, 42, 8434 DOI: 10.1039/C3CS60182J

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