Huang T, Suleman M, Xu Z, Wei L, Yang Y, Zhang M, Chen Z. Transition-Metal-Free Sulfoximidation of Sulfonylhydrazones for the Synthesis of
N-Sulfanylidenehydrazonamides.
Org Lett 2024;
26:6597-6601. [PMID:
39058905 DOI:
10.1021/acs.orglett.4c02170]
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Abstract
Herein, we report a transition-metal-free C-H bond sulfoximidation protocol of sulfonyl hydrazones with hypervalent iodine(III) reagents. A library of novel N-sulfaneylidenehydrazonamides was constructed via chemoselective C-N bond formation reactions at aldehyde C-H bonds of sulfonyl hydrazones in the presence of a base. The reaction demonstrated broad substrate group diversity under exceedingly mild reaction conditions, and excellent yields were achieved at room temperature.
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