Zhao TT, Qin HN, Xu PF. Light-Promoted Nickel-Catalyzed C-O/C-N Coupling of Aryl Halides with Carboxylic Acids and Sulfonamides.
Org Lett 2023;
25:636-641. [PMID:
36668813 DOI:
10.1021/acs.orglett.2c04210]
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Abstract
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 group tolerance and high efficiency. Moreover, the UV-vis absorption spectrum and free radical trapping experiments aimed at revealing the mechanism of the reaction are also presented.
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