Light-Promoted Nickel-Catalyzed C–O/C–N Coupling of Aryl Halides with Carboxylic Acids and Sulfonamides
作者:Tian-Tian Zhao、Hao-Ni Qin、Peng-Fei Xu
DOI:10.1021/acs.orglett.2c04210
日期:2023.2.3
A general strategy for the construction of dual-functional carbon–heteroatom bonds has been developed via a light-promoted nickel catalytic system. Employing a simple NiBr2 as the catalyst without any exogeneous ligands and photosensitizers, a variety of esters and sulfonamide N-arylation derivatives, including celecoxib- and glimepiride-derived sulfonamides, were readily accessed with high functional
通过光促进的镍催化系统开发了构建双功能碳-杂原子键的一般策略。使用简单的 NiBr 2作为催化剂,无需任何外源配体和光敏剂,各种酯和磺酰胺 N-芳基化衍生物,包括塞来昔布和格列美脲衍生的磺胺类化合物,很容易获得,具有高官能团耐受性和高效率。此外,还介绍了旨在揭示反应机理的紫外-可见吸收光谱和自由基捕获实验。