Synthesis of Phenanthridines through Palladium-Catalyzed Cascade Reaction of 2-Halo-<i>N</i>-Ms-arylamines with Benzyl Halides/Sulfonates
作者:Si-Yi Yang、Wen-Yong Han、Ding-Lei Zhang、Xiao-Jian Zhou、Mei Bai、Bao-Dong Cui、Nan-Wei Wan、Wei-Cheng Yuan、Yong-Zheng Chen
DOI:10.1002/ejoc.201601608
日期:2017.2.3
An efficient palladium-catalyzed nucleophilic substitution/C–H activation/aromatization cascade reaction between readily available 2-halo-N-Ms-arylamines (Ms = methanesulfonyl) and benzyl halides/sulfonates has been described. A wide variety of phenanthridines were synthesized in a one-pot fashion in moderate to high yields (37–86 %). Notably, this method provides a straightforward, facile approach
已经描述了容易获得的 2-卤代-N-Ms-芳基胺(Ms = 甲磺酰基)和苄基卤化物/磺酸盐之间的有效钯催化亲核取代/C-H 活化/芳构化级联反应。以一锅法以中等至高产率 (37–86%) 合成了多种菲啶。值得注意的是,该方法为菲啶的合成提供了一种直接、简便的方法。通过成功进行克级制备进一步证实了实用性。