Synthetic and reaction chemistry of heteroatom stabilized boryl and cationic borylene complexes

Deborah L Kays Née Coombs1, Andrea Rossin, Joanne K Day

  • 1Centre for Fundamental and Applied Main Group Chemistry, School of Chemistry, Cardiff University, UK.

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Introduction
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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