3 years ago

Synthesis of Aromatic Sulfonamides through a Copper-Catalyzed Coupling of Aryldiazonium Tetrafluoroborates, DABCO·(SO2)2, and N-Chloroamines

Synthesis of Aromatic Sulfonamides through a Copper-Catalyzed
Coupling of Aryldiazonium Tetrafluoroborates, DABCO·(SO2)2, and N-Chloroamines
Jiangtao Sun, Jiang Cheng, Feng Zhang, Danqing Zheng, Lifang Lai, Jie Wu
A copper-catalyzed aminosulfonylation of aryldiazonium tetrafluoroborates, DABCO·(SO2)2, and N-chloroamines is described. This coupling reaction provides an efficient and simple approach to a wide range of sulfonamides in moderate to good yields under mild conditions. Mechanistic investigation suggests that a radical process and transition-metal catalysis are merged in this tandem reaction.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.8b00093

DOI: 10.1021/acs.orglett.8b00093

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