Isothiourea-Mediated Stereoselective <i>C</i>-Acylation of Silyl Ketene Acetals
作者:Philip A. Woods、Louis C. Morrill、Tomas Lebl、Alexandra M. Z. Slawin、Ryan A. Bragg、Andrew D. Smith
DOI:10.1021/ol1008747
日期:2010.6.4
Isothiourea DHPB promotes the diastereoselective C-acylation of silylketeneacetals with anhydrides or benzoyl fluoride, giving 3-acyl-3-aryl or 3-acyl-3-alkylfuranones in excellent yields and stereoselectivities (up to 99:1 dr).