REGIOSELECTIVE OXIDATION OF INTERNAL OLEFINS BEARING NEIGHBORING OXYGEN FUNCTIONS BY MEANS OF PALLADIUM CATALYSTS. A DIRECT PREPARATION OF γ-KETO ESTERS AND 1,4-DIKETONES FROM β,γ-UNSATURATED ESTERS AND KETONES

Article abstract of DOI:10.1246/cl.1982.859

γ-Keto esters and 1,4-diketones were prepared by the palladium-catalyzed regioselective oxidation of β,γ-unsaturated esters and ketones.The best yields were obtained when the reaction was carried out using PdCl2/CuCl/O2 catalyst system in aqueous dioxane.