Catalytic effects of poly(methyl methacrylate)-supported beta-diketone-linked palladium complexes in olefin oxidation

Poly(methyl methacrylate)-supported beta-diketone-linked palladium complexes on refluxing with olefins at 70C in methanol–water medium for 10 h afforded carbonyl compounds. The course of the reaction was found to be influenced by the degree of cross-linking of the polymer matrix and the structural environment of the ligand. The reaction is assumed to proceed through a hydroxy palladation intermediate. A suitable mechanism is also suggested.