A Cu-catalysed synthesis of substituted 3-methyleneisoindolin-1-one
作者:Anupal Gogoi、Srimanta Guin、Saroj K. Rout、Ganesh Majji、Bhisma K. Patel
DOI:10.1039/c4ra12782j
日期:——
A Cu-catalysed synthesis of substituted isoindolin-1-one has been achieved via a decarboxylative alkynylation–heteroannulation path.
通过脱羧炔基化-杂环化途径,已经实现了一种取代异吲哚啉-1-酮的Cu催化合成。
Palladium-Catalyzed Annulation of Arynes by <i>o</i>-Halobenzamides: Synthesis of Phenanthridinones
作者:Chun Lu、Anton V. Dubrovskiy、Richard C. Larock
DOI:10.1021/jo3016192
日期:2012.10.5
The palladium-catalyzedannulation of arynes by substituted o-halobenzamides produces N-substituted phenanthridinones in good yields. This methodology provides this important heterocyclic ring system in a single step by simultaneous C–C and C–N bond formation, under relatively mild reaction conditions, and tolerates a variety of functional groups.
A practical and operationally simple hydrodehalogenation of halogenated carboxylic acid derivatives using a DMSO/HCOONa·2H2O system is developed. This protocol avoids the involvement of light irradiation, electrochemical apparatus, transition metals, radical initiators, strong bases, and other additional additives. Control experiments suggest that HCOONa might function as a hydride donor in the reduction
开发了使用 DMSO/HCOONa·2H 2 O 系统对卤代羧酸衍生物进行实用且操作简单的加氢脱卤。该协议避免了光照射、电化学装置、过渡金属、自由基引发剂、强碱和其他附加添加剂的参与。对照实验表明,HCOONa 可能在通过亲核取代或加成实现加氢脱卤的还原过程中充当氢化物供体。
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