Herein we reported the electrochemical hydroboration of alkynes by using B Pin 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8251609 | PMC |
| http://dx.doi.org/10.1002/chem.202101132 | DOI Listing |
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