The first solid-supported directed aromatic C–Hactivation/acetoxylation has been successfully developed by using palladium nanoparticles supported on graphene oxide (PdNPs/GO) as a catalyst. The practicability of this method is demonstrated by simple preparation of catalyst, high catalytic efficiency, wide functional group tolerance, and easy scale up of the reaction. A hot filtration test and Hg(0)
Enhancing Substrate–Metal Catalyst Affinity via Hydrogen Bonding: Pd(II)-Catalyzed β-C(sp<sup>3</sup>)–H Bromination of Free Carboxylic Acids
作者:Liang Hu、Guangrong Meng、Xiangyang Chen、Joseph S. Yoon、Jing-Ran Shan、Nikita Chekshin、Daniel A. Strassfeld、Tao Sheng、Zhe Zhuang、Rodolphe Jazzar、Guy Bertrand、K. N. Houk、Jin-Quan Yu
DOI:10.1021/jacs.3c04223
日期:2023.8.2
While hydrogen bonding has been harnessed to bias siteselectivity in existing C(sp2)–H activation reactions, the potential for designing catalysts with hydrogen bond donors (HBDs) to enhance catalyst–substrate affinity and, thereby, facilitate otherwise unreactive C(sp3)–H activation remains to be demonstrated. Herein, we report the discovery of a ligand scaffold containing a remote amide motif that