Synlett 2020; 31(11): 1077-1081
DOI: 10.1055/s-0040-1707121
letter
© Georg Thieme Verlag Stuttgart · New York

Copper-Catalyzed Asymmetric Intermolecular N-Monoarylation of Unprotected Sulfonamides via Desymmetrization of Diaryliodonium Salts at Room Temperature

Yan-Li Li
,
Chun Zhang
,
Xiao Jin
,
Xiu-Ling Yu
,
Zhen Wang
,
Hui-Zhen Zhang
,
Wen-Qiang Yang

Financial support from the National Natural Science Foundation of China (Grant 21602095).
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Publikationsverlauf

Received: 21. Februar 2020

Accepted after revision: 26. April 2020

Publikationsdatum:
19. Mai 2020 (online)


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Abstract

A copper-catalyzed asymmetric intermolecular N-monoarylation of weakly nucleophilic sulfonamide by desymmetrization of cyclic diaryliodonium salts has been developed. Chiral copper(II)–diamine ligand complexes catalyzed this intermolecular asymmetric aryl C–N cross-coupling reaction effectively at room temperature to afford a series of N-monoarylsulfonamides in good to excellent yields and enantioselectivities.

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