CoCl2 catalysed decarboxylation-oxidation of mandelic acids by molecular oxygen

New Journal of Chemistry Pub Date: 2003-10-29 DOI: 10.1039/B307186C

Abstract

A series of mandelic acid derivatives was oxidised by molecular oxygen using cobalt(II) chloride as the catalyst. Benzaldehyde and/or benzoic acid derivatives were obtained in high selectivities, depending on the aromatic ring substitution. Different oxidation mechanisms are operating, depending on the mandelic acid substitution.

Graphical abstract: CoCl2 catalysed decarboxylation-oxidation of mandelic acids by molecular oxygen
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