4.6 Article

N,O-ligated Pd(II) complexes for catalytic alcohol oxidation

Journal

CATALYSIS SCIENCE & TECHNOLOGY
Volume 4, Issue 8, Pages 2526-2534

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cy00296b

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Funding

  1. Department of Employment and Learning, Northern Ireland
  2. Queen's University Belfast Ionic Liquid Laboratories (QUILL)
  3. Centre for the Theory and Application of Catalysis (CenTACat)

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N,O-ligated Pd(II) complexes show considerable promise for the oxidation of challenging secondary aliphatic alcohols. The crystal structures of the highly active complexes containing the 8-hydroxyquinoline-2-carboxylic acid (HCA) and 8-hydroxyquinoline-2-sulfonic acid (HSA) ligands have been obtained. The (HSA) Pd(OAc)(2) system can effectively oxidise a range of secondary alcohols, including unactivated alcohols, within 4-6 h using loadings of 0.5 mol%, while lower loadings (0.2 mol%) can be employed with extended reaction times. The influence of reaction conditions on catalyst degradation was also examined in these studies.

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