Asymmetric Syntheses of (−)-Enterolactone and (7′<i>R</i>)-7′-Hydroxyenterolactone via Organocatalyzed Aldol Reaction
作者:Saumen Hajra、Aswini Kumar Giri、Sunit Hazra
DOI:10.1021/jo900810a
日期:2009.10.16
Short syntheses of (−)-enterolactone (1a) and (7′R)-7′-hydroxyenterolactone (1b) have been achieved utilizing organocatalyzed asymmetric cross-aldol reaction of aldehydes 2 and 3 and base-mediated alkylation of lactones 5 and 4.