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。
Rapid construction of C4-substituted phenanthridinones through palladium-catalyzed domino N-arylation/aryl-aryl coupling process
作者:Chao Liu、Liangliang Song、Luc Van Meervelt、Erik V. Van der Eycken
DOI:10.1016/j.mcat.2021.111766
日期:2021.8
Practical Synthesis of Phenanthridinones by Palladium-Catalyzed One-Pot C-C and C-N Coupling Reaction: Extending the Substrate Scope to<i>o</i>-Chlorobenzamides
domino reaction proceeds through a sequential C–C and C–N bond-formation process in one pot. This protocol exhibits broad substratescope and affords a series of phenanthridinones in up to 93 % yield. Importantly, the protocol could also be applied for the less reactive o-chlorobenzamides. The approach constitutes the first example of the synthesis of phenanthridinones from this kind of substrate. Moreover
Preparation of benzisothiazolones from 2-bromobenzamides and sulfur under copper catalysis conditions
作者:V. Krasikova、M. Katkevics
DOI:10.1007/s10593-013-1193-5
日期:2013.2
A convenient two-stage method has been developed for preparing benz[d]isothiazol-3(2H)-ones from 2-bromobenzamides and sulfur in a one-pot process under copper catalysis conditions. The method is suitable for the synthesis of N-aryl-, benzyl-, and alkyl-substituted benzisothiazolones. The yields of the benzisothiazolones depend on the nature of the starting amide and can reach 91%.
已经开发了一种方便的两步法,用于在铜催化条件下通过一锅法从2-溴苯甲酰胺和硫制备苯并[ d ]异噻唑-3(2 H)-一。该方法适合于合成N-芳基-,苄基-和烷基取代的苯并异噻唑酮。苯并异噻唑酮的产率取决于起始酰胺的性质,可以达到91%。