Synthesis of Aza-Fused Polycyclic Quinolines through Copper-Catalyzed Cascade Reactions
作者:Qian Cai、Zhengqiu Li、Jiajia Wei、Liangbin Fu、Chengyong Ha、Duanqing Pei、Ke Ding
DOI:10.1021/ol1002225
日期:2010.4.2
the synthesis of aza-fused polycyclic quinolines (e.g., benzimidazo[1,2-a]quinolines) is described. This protocol includes an intermolecular condensation followed by a copper-catalyzed intramolecular C−N coupling reaction. The method is applied to a wide range of 2-iodo, 2-bromo, and 2-chloro aryl aldehyde substrates to yield the aza-fused polycyclic quinolines in good yields.
描述了一种合成氮杂稠合多环喹啉(例如,苯并咪唑并[1,2- a ]喹啉)的新的有效方法。该方案包括分子间缩合,然后进行铜催化的分子内CN偶联反应。该方法适用于广泛的2-碘,2-溴和2-氯芳基醛底物,从而以良好的收率生产出氮杂稠合的多环喹啉。