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Highly selective catalytic trans-hydroboration of alkynes mediated by borenium cations and B(C6F5)3

John S McGough1, Samuel M Butler1, Ian A Cade1

  • 1University of Manchester , Oxford Road , Manchester M13 9PL. , UK .

Chemical Science
|July 13, 2018
PubMed

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One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
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