An oxidative annulation for the synthesis of 2,4-diarylquinolines from o-allylanilines is disclosed that uses recyclable reagent Chloranil­ as the oxidant. The corresponding products are obtained in moderate to excellent yields. Furthermore, a one-pot access to 2,4-di­aryl­quinolines from easily available anilines and 1,3-diarylpropenes is described as a highly atom-efficient protocol that involves oxidative coupling, rearrangement, and oxidative annulation.

中文翻译：

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氯腈促进的氧化环化和一锅法合成2,4-二芳基喹啉衍生物

公开了一种由邻烯丙基苯胺合成2,4-二芳基喹啉的氧化环合反应，该方法使用可循环利用的试剂氯腈作为氧化剂。以中等至优异的产率获得相应的产物。此外，从容易获得的苯胺和1,3-二芳基丙烯一锅通到2,4-二芳基喹啉被描述为一种高度原子有效的方案，涉及氧化偶联，重排和氧化环化。