New formal (3+3) cycloaddition of enaminones for forming tetracyclic indolo[2,3-b]quinolines under microwave irradiation
作者:Meng-Yuan Li、Hai-Wei Xu、Wei Fan、Qin Ye、Xue Wang、Bo Jiang、Shu-Liang Wang、Shu-Jiang Tu
DOI:10.1016/j.tet.2013.11.022
日期:2014.1
Concise and efficient base-promoted domino formal (3+3) cycloaddition has been established for the formation of tetracyclic indolo[2,3-b]quinoline derivatives under microwave heating. The present methodology shows attractive properties, such as the maximum efficiency of a process, short reaction periods, and operational simplicity, and it can avoid time-consuming and costly syntheses, tedious work-up
已经建立了简捷高效的碱促进的多米诺甲醛缩甲醛(3 + 3)环加成反应,用于在微波加热下形成四环吲哚并[2,3- b ]喹啉衍生物。本方法学显示出有吸引力的性质,例如过程的最大效率,较短的反应时间和操作简便性,并且可以避免耗时且昂贵的合成,繁琐的后处理和中间体的分离。该化学方法为构建四环吲哚并[2,3- b ]喹啉骨架提供了简便而有希望的合成策略。