Dehydrative C–H Alkylation and Alkenylation of Phenols with Alcohols: Expedient Synthesis for Substituted Phenols and Benzofurans
作者:Dong-Hwan Lee、Ki-Hyeok Kwon、Chae S. Yi
DOI:10.1021/ja302710v
日期:2012.5.2
well-defined cationic Ru-H complex catalyzes the dehydrative C-H alkylation reaction of phenols with alcohols to form ortho-substituted phenol products. Benzofuran derivatives are efficiently synthesized from the dehydrative C-H alkenylation and annulation reaction of phenols with 1,2-diols. The catalytic C-H coupling method employs cheaply available phenols and alcohols, exhibits a broad substrate scope, tolerates
明确定义的阳离子 Ru-H 络合物催化苯酚与醇的脱水 CH 烷基化反应,形成邻位取代的苯酚产物。苯并呋喃衍生物是由苯酚与 1,2-二醇的脱水 CH 烯基化和环化反应有效合成的。催化 CH 偶联方法使用廉价的酚类和醇类,表现出广泛的底物范围,耐受羰基和胺官能团,并释放水作为唯一的副产物。