Herein, a Visible-light synthesis of 1,4-dicarbonyl vinyl sulfones via sulfoxonium ylide homocoupling forming C≡C bonds, followed by sulfonyl hydrazide alkenylation is disclosed. Mechanistic studies support a sequential single-electron transfer (SET) and radical addition pathway. The method offers a sustainable alternative to conventional alkyne functionalization strategie.
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H. Yang, X. Yu, C. Liu, M. Li, M. Yuan, J. Chen and Y. Jin, Org. Biomol. Chem., 2025, Accepted Manuscript , DOI: 10.1039/D5OB01191D
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