Three-Component Povarov Reaction with Alcohols as Alkene Precursors: Efficient Access to 2-Arylquinolines
作者:Xinjian Li、Qi Xing、Pan Li、Jingjing Zhao、Fuwei Li
DOI:10.1002/ejoc.201601343
日期:2017.1.18
An atom-economic and efficient approach to the synthesis of 2-arylquinolines has been developed. The protocol involves an iron-catalysed cascade N-alkylation/aerobic oxidation/Povarov reaction, and the desired quinolines were prepared in moderate to excellent yields from readily accessible anilines, aldehydes, and EtOH/nPrOH, with water as the only side-product. The aniline substrates also act as a
已开发出一种原子经济且有效的合成 2-芳基喹啉的方法。该协议涉及铁催化的级联 N-烷基化/有氧氧化/Povarov 反应,所需的喹啉是从易于获得的苯胺、醛和 EtOH/nPrOH 中以中等至极好的收率制备的,水作为唯一的副产品。苯胺底物还通过原位 N-烷基化/氧化过程充当 EtOH/nPrOH 的可回收转移介质。这使得 EtOH/nPrOH 成为一种经济且环保的烯烃前体和溶剂。