We developed a palladium-catalyzed carbonylative Sonogashira reaction with aryl triazenes and alkynes as substrates and methanesulfonic acid as the additive. A series of α,β-ynones were synthesized by this alternative procedure. Notably, bromides, iodides and hydroxyl groups could be well-tolerated under these reaction conditions.
W. Li and X. Wu, Org. Biomol. Chem., 2015, 13, 5090 DOI: 10.1039/C5OB00502G
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