An efficient and novel approach to accessing 3-selenylquinolines from diaryl diselenides and acyclic, selenium-free substrates is described. Preliminary mechanistic studies indicate that the combination of CuCl₂ and air affords an appropriate environment for producing arylselenyl radicals that initiate the cascade cyclization of N-(2-alkynyl)anilines, forming key Se–C and C–C bonds in a single step. Using this chemistry, a wide variety of 3-selenylquinolines were produced in moderate to excellent yield under mild conditions, highlighting the versatility and usefulness of this new method.

中文翻译：

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芳基硒基介导的 N-（2-炔基）苯胺环化：获得 3-硒基喹啉

描述了一种从二芳基二硒化物和无环无硒底物中获取 3-硒基喹啉的有效且新颖的方法。初步机理研究表明，CuCl ₂和空气的结合为生成芳基硒基自由基提供了合适的环境，这些自由基引发了N- (2-炔基)苯胺的级联环化，一步形成关键的 Se-C 和 C-C 键。使用这种化学方法，在温和条件下以中等至优异的产率生产了多种 3-硒基喹啉，突出了这种新方法的多功能性和实用性。