Gold catalyzed efficient preparation of dihydrobenzofuran from 1,3-enyne and phenol
作者:Yu-Jiang Wang、Yuan Zhang、Zou Qiang、Jia-Ying Liang、Zili Chen
DOI:10.1039/d1cc05260h
日期:——
A gold catalyzed formal intermolecular [2+3] cyclo-coupling of 1,3-enynes with phenols was developed to prepare dihydrobenzofuran derivatives with the addition of 2,6-dichloropyridine N-oxide, in which, a highly ortho-selective phenol SEAr functionalization was achieved by using 1,3-enynes as α-oxo vinyl gold carbenoid surrogates.
开发了金催化的 1,3-烯炔与苯酚的正式分子间 [2+3] 环偶联,通过添加 2,6-二氯吡啶N-氧化物制备二氢苯并呋喃衍生物,其中,高度邻位选择性的苯酚 S E Ar 官能化是通过使用 1,3-烯炔作为 α-氧代乙烯基金卡宾酸替代物来实现的。