Preparation of 2-arylquinolines from β-arylpropionitriles with aryllithiums and NIS through iminyl radical-mediated cyclization
作者:Hiroki Naruto、Hideo Togo
DOI:10.1039/c9ob00944b
日期:——
Treatment of β-arylpropionitriles with aryllithiums, followed by the reaction with water and then with NIS under irradiation with a tungsten lamp gave 2-arylquinolines in good to moderate yields. The present reaction proceeds through the formation of N-iodoimines from imines with NIS, the generation of imino-nitrogen-centered radicals, and their cyclization onto the aromatic rings of the imines to
用芳基锂处理β-芳基丙腈,然后与水反应,然后与NIS在钨灯照射下反应,得到2-芳基喹啉,具有良好至中等的产率。本反应通过具有NIS的由亚胺形成N-碘亚胺,以亚氨基氮为中心的自由基的生成,以及将它们环化到亚胺的芳环上以形成2-芳基-3,4-二氢喹啉而进行。最后,用NIS氧化2-芳基-3,4-二氢喹啉可以顺利进行,从而生成2-芳基喹啉。