Gold-Catalyzed Synthesis of Tropone and Its Analogues via Oxidative Ring Expansion of Alkynyl Quinols
作者:Jidong Zhao、Jun Liu、Xin Xie、Shi Li、Yuanhong Liu
DOI:10.1021/acs.orglett.5b03160
日期:2015.12.4
convenient strategy for the synthesis of functionalized tropone derivatives based on the gold-catalyzedoxidativeringexpansion of alkynyl quinols has been developed. The reaction proceeds via gold-catalyzedhighly regioselective oxidation followed by 1,2-migration of a vinyl or phenyl group. Extension of this chemistry allows ready access to various seven- or six-membered ring systems such as benzotropones