Organocatalytic and metal-mediated asymmetric [3+2] cycloaddition reactions

This review focuses on recent progress in organocatalytic and metal-mediated asymmetric [3 + 2] cycloadditions, including 'click' chemistry, asymmetric 1,3-dipolar and asymmetric non-1,3-dipolar [3 + 2] cycloadditions. The theoretical aspects and synthetic applications of these organocatalytic and metal-mediated asymmetric [3 + 2] cycloadditions are summarized. In addition, an understanding of the mechanistic details which lead to efficient stereoselectivity in organocatalytic and metal-mediated asymmetric [3 + 2] cycloadditions is provided. Most of the references reviewed in this paper are from 2007 upto now. (C) 2012 Elsevier B.V. All rights reserved.