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Electrochemical Hydroboration of Alkynes |
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| Authors: | Maude Aelterman Dr. Morgane Sayes Prof. Dr. Philippe Jubault Prof. Dr. Thomas Poisson |
| Affiliation: | 1. Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France;2. Centre in Green Chemistry and Catalysis, Faculty of Arts and Sciences, Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec, H3 C3 J7 Canada |
| Abstract: | Herein we reported the electrochemical hydroboration of alkynes by using B2Pin2 as the boron source. This unprecedented reaction manifold was applied to a broad range of alkynes, giving the hydroboration products in good to excellent yields without the need of a metal catalyst or a hydride source. This transformation relied on the possible electrochemical oxidation of an in situ formed borate. This anodic oxidation performed in an undivided cell allowed the formation of a putative boryl radical, which reacted on the alkyne. |
| Keywords: | alkynes anodic oxidation boryl radical electrochemistry hydroboration |