Epoxy-Annulations by Reactions of α-Amido Ketones with Vinyl Sulfonium Salts. Reagent versus Substrate Control and Kinetic Resolution
作者:Matthew G. Unthank、Bahareh Tavassoli、Varinder K. Aggarwal
DOI:10.1021/ol800318h
日期:2008.4.1
Diphenyl vinyl sulfonium salt and chiral amido-ketones undergo highlydiastereoselective epoxy-annulation reactions in good yield. The use of a chiral vinyl sulfonium salt dominates the stereochemical outcome of the annulation reaction (reagent control is greater than substrate control), and this has allowed the kinetic resolution of racemic amido-ketones to be achieved.