Palladium-Catalyzed Aerobic Oxidative Coupling of <i>ortho</i>-(Alkynyl)styrenes with Allylic Alcohols via 6-<i>endo-dig</i> Cyclization: Regioselective Construction of Polysubstituted Naphthalenes
作者:Perla Ramesh、Gedu Satyanarayana
DOI:10.1021/acs.joc.9b01240
日期:2019.10.18
An efficient protocol is described for the regioselective construction of polysubstituted functionalized naphthalenes from easily accessible ortho-(alkynyl)styrenes under mild reaction conditions. The reaction proceeds via cycloaromatization and intermolecular coupling of ortho-(alkynyl)styrenes with allylic alcohols catalyzed by PdCl2. Notably, the reaction is successful under open air as the green
描述了一种有效的方案,用于在温和的反应条件下从容易获得的邻(炔基)苯乙烯区域选择性构建多取代的官能化萘。该反应通过环芳构化和邻-(炔基)苯乙烯与PdCl 2催化的烯丙基醇的分子间偶联而进行。值得注意的是,该反应在露天作为绿色氧化剂源时是成功的。发现包括保护游离的OH基在内的一系列官能团(F,Cl,Br,NO 2和酯)是相容的。