Sulfonylation of Bismuth Reagents with Sulfinates or SO2through BiIII/BiV Intermediates
Studies to explore the catalytic activities of main-group elements are attractive. We report here our study of sulfonylation of bismuth reagents with sulfinates or SO2 surrogates. Under oxidative conditions, triarylbismuthines and sulfinates were transformed into diaryl sulfones. A transition-metal-like two-electron redox process at the Bi center was achieved in this reaction. Sulfur dioxide generated in situ can also replace sulfinates to deliver the corresponding symmetric diaryl sulfones. A rational mechanism for this reaction was also proposed that involves a Bi(III)-Bi(V) manifold.
Zhao, Fengqian,Wu, Xiao-Feng
supporting information
p. 2400 - 2404
(2021/07/28)
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