Rhodium(III)‐Catalyzed Three‐Component Cascade Annulation for Modular Assembly of
<i>N</i>
‐Alkoxylated Isoindolin‐1‐Ones with Quaternary Carbon Center
作者:Wenbo Hu、Liqin Yan、Youpeng Zuo、Shuwen Kong、Yue Pu、Qiang Tang、Xinyu Wang、Xinwei He、Yongjia Shang
DOI:10.1002/adsc.202200307
日期:2022.8.2
A cascade C−H activation, annulation, and etherification of N-hydroxybenzamides with propargylamines provides a flexible route to N-alkoxylated 3-arylisoindolin-1-ones. Three new bonds (C−C, C−N, and C−O) are generated to afford a series of isoindolin-1-ones bearing a tetrasubstituted carbon in 49–82% yield. The utility of this method was showcased by gram-scale synthesis and synthetic transformations
N-羟基苯甲酰胺与炔丙基胺的级联 C-H 活化、环化和醚化为N-烷氧基化 3-arylisoindolin-1-ones提供了灵活的途径。生成三个新键(C-C、C-N 和 C-O),以 49-82% 的产率提供一系列带有四取代碳的异吲哚啉-1-酮。该方法的实用性通过产品的克级合成和合成转化来获得结构多样的异吲哚啉酮得到展示。