Regio- and Diastereoselective Reduction of Nonenolizable α-Diketones to Acyloins Mediated by Indium Metal
作者:Faiz Ahmed Khan、Jyotirmayee Dash、Nilam Sahu、Sharad Gupta
DOI:10.1021/ol025593s
日期:2002.3.1
[reaction: see text] Alpha-diketones are efficiently reduced with indium metal in methanol-water in the presence of NH(4)Cl, LiCl, or NaCl to give regio- and diastereoselectively the corresponding acyloins in good to excellent yield. The cleavage of the acyloins under Pb(OAc)(4)/MeOH-PhH condition provides a convenient and regioselective access to highlyfunctionalizedcyclopentane carboxaldehydes