Palladium-catalyzed annulation of benzynes with N-substituted-N-(2-halophenyl)formamides: synthesis of phenanthridinones
作者:Yuan Yang、Hui Huang、Lijun Wu、Yun liang
DOI:10.1039/c4ob00997e
日期:——
A novel and efficient procedure for the synthesis of N-substituted phenanthridinones via palladium-catalyzed annulation of benzynes with N-substituted-N-(2-halophenyl)formamides has been developed. This methodology constructs two new C–C bonds via an arylation/annulation process, and provides the desired products in good yields.
Construction of Phenanthridinone Skeletons through Palladium-Catalyzed Annulation
作者:Xin Geng、Heng He、Andrey Shatskiy、Elena V. Stepanova、Gregory R. Alvey、Jian-Quan Liu、Markus D. Kärkäs、Xiang-Shan Wang
DOI:10.1021/acs.joc.3c01429
日期:2023.9.1
Herein, a straightforward synthetic approach for the construction of phenanthridin-6(5H)-one skeletons is disclosed. The developed protocol relies on palladium catalysis, providing controlled access to a range of functionalized phenanthridin-6(5H)-ones in 59–88% yields. Furthermore, plausible reaction pathways are proposed based on mechanistic experiments.
本文公开了构建菲啶-6(5 H )-酮骨架的简单合成方法。所开发的方案依赖于钯催化,以 59-88% 的产率提供一系列功能化菲啶-6(5 H )-酮的受控访问。此外,基于机械实验提出了合理的反应途径。
<b>A Simple General Approach to Phenanthridinones via Palladium-Catalyzed Intramolecular Direct Arene Arylation</b>
Phenanthridinone derivatives have been prepared in good to high yields via palladium-catalyzed cyclization of readily available N-benzyl-N-benzoyl-o-iodoanilides.