Stereospecific Ring Expansion of Chiral Vinyl Aziridines
作者:Matthew Brichacek、Mauricio Navarro Villalobos、Alexandra Plichta、Jon T. Njardarson
DOI:10.1021/ol200263g
日期:2011.3.4
In this report, it is demonstrated that chiral vinyl aziridines can be stereospecifically ring expanded. This synthetic approach allows controlled access to chiral 2,5-cis- or 2,5-trans-3-pyrroline products from starting materials with the appropriate aziridine geometry. Twenty three ringexpansion examples, most of which feature a stereospecific cyclization, are presented.