Oxidation of Benzylic and Allylic Alcohols with Cobalt(III) Acetate in Acetic Acid in the Presence and Absence of Sodium Bromide

Article abstract of DOI:10.1246/bcsj.61.3749

Benzyl alcohol and its o-, m-, and p-substituted derivatives afforded fairly good yields of the corresponding benzaldehydes through a reaction with a Co(III)-NaBr system.With allylic alcohols, this system failed in a selective formation of unsaturated carbonyl compounds.In the latter cases, the products were effectively obtained by using a higher concentration of cobalt(III)acetate in the absence of NaBr.