Gold-Catalyzed Oxidative Cyclizations of 2-Oxiranyl-1-alkynylbenzenes for Diastereoselective Synthesis of Highly Substituted 2-Hydroxyindanones
作者:Rupsha Chaudhuri、Rai-Shung Liu
DOI:10.1002/adsc.201100325
日期:2011.10
We report the gold-catalyzedoxidativecyclizations of 2-oxiranyl-1-alkynylbenzenes into highlysubstituted 2-hydroxyindanone frameworks bearing a tertiary alcohol. Such gold-catalyzed reactions comprise an initial internal redox reaction, sulfoxide oxidation of α-carbonyl gold-carbenoids, followed by gold-catalyzed formal ene reactions on the resulting diketone intermediates.