General approach to benzo[b]thiophenes, benzo[b]furans, and dibenzofurans via gold-catalyzed cyclization of 1-heteroarylalka-2,3-dienyl acetates
作者:Youai Qiu、Dengke Ma、Chunling Fu、Shengming Ma
DOI:10.1016/j.tet.2013.04.099
日期:2013.7
mild route to a series of benzo[b]thiophenes, benzo[b]furans, and dibenzofurans through gold-catalyzed benzannulation of 1-heteroarylalka-2,3-dienyl acetates was developed. Two possible pathways of this reaction involving gold carbene and aryl gold intermediates have been proposed on the basis of mechanisticstudies.
通过金催化的1-杂芳基烷基-2,3-二烯基乙酸酯的苯并环烷基化反应,开发了一种高效温和的途径来制备一系列苯并[ b ]噻吩,苯并[ b ]呋喃和二苯并呋喃。在机理研究的基础上,提出了该反应涉及金卡宾和芳基金中间体的两种可能途径。