We report a palladium-catalyzed esterification protocol using aryl diazonium salts and N-hydroxysuccinimidyl (NHS) formate as a CO surrogate, avoiding the use of toxic CO gas. This mild and efficient method employs readily available starting materials and affords NHS esters suitable for late-stage functionalization and bioconjugation applications.
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P. Paul and J. Dash, Chem. Commun., 2025, 61, 10977 DOI: 10.1039/D5CC02739J
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