Oxygen-directed intramolecular hydroboration

J Am Chem Soc. 2008 Jul 23;130(29):9182-3. doi: 10.1021/ja800402g. Epub 2008 Jun 24.

Abstract

Metal-free homoallylic oxygen-directed intramolecular hydroboration is reported. Regioselectivities from 20:1 to 82:1 favoring the 1,3-dioxy-substituted products have been achieved using Me2S.BH3/TfOH followed by standard oxidative workup. Branching at the C5 position improves regioselectivity.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Alcohols / chemistry*
  • Alkenes / chemistry
  • Boranes / chemistry*
  • Iodine / chemistry
  • Oxidation-Reduction
  • Propanols / chemical synthesis
  • Propanols / chemistry

Substances

  • Alcohols
  • Alkenes
  • Boranes
  • Propanols
  • allyl alcohol
  • Iodine