Transition-Metal-Free One-Pot Synthesis of Naphthoquinonefuran Derivatives Through Sequential Nucleophilic Substitution–Nucleophilic Addition Reaction
作者:Xiang Li、Peng Sun、Kaijun Xie、Dun Zhou、Jinsong Peng、Aihong Fan、Jing Zhang、Chunxia Chen
DOI:10.1021/acs.joc.0c00513
日期:2020.7.17
naphthoquinonefuran derivatives from 2-hydroxynaphthoquinones has been developed. The sequentially accomplished process comprises an intermolecular alkynylation of sp2-carbon at the 3 position of 2-hydroxynaphthoquinones with arylethynyl bromides, followed by a base-promoted intramolecular nucleophilic annulation reaction. A broad range of functional groups is compatible with this reaction, and diverse naphtho[2
已经开发了一种无过渡金属的路线,用于从2-羟基萘醌串联一锅法合成萘醌呋喃衍生物。依次完成的方法包括在2-羟基萘醌的3位上的sp 2-碳的分子间炔基化与芳基乙炔基溴化物,然后进行碱促进的分子内亲核环化反应。广泛的官能团与该反应相容,并且可以以良好的产率和优异的区域选择性获得各种萘并[2,3 - b ]呋喃-4,9-二酮。