Porphyrin-catalyzed Oxidation Research Articles

Cobalt(II) Porphyrin-Catalyzed Oxidation of Olefins to Ketones with Molecular Oxygen and Triethylsilane in 2-Propanol

Abstract An efficient conversion of olefins to ketones was achieved by the use of molecular oxygen and triethylsilane in the presence of a catalytic amount of cobalt(II) complex of porphyrin. The oxidation was accelerated remarkably in alcohols and had chemoselectivity for conjugated olefins.

A new easy access to quinones from iron porphyrin-catalysed oxidation of methoxyarenes by magnesium monoperoxyphthalate

Electron-rich methoxyarenes were oxidized with high yields (55–100%) and under mild conditions to the corresponding paraquinones by magnesium monoperoxyphthalate in the presence of catalytic amounts of a water-soluble iron porphyrin; the reaction was used to prepare methoxatin.

Manganese porphyrin-catalysed oxidation of olefins to ketones by molecular oxygen

Manganese(III) tetraphenylporphin MnIII(tpp)Cl catalyses the specific oxidation of olefins to ketones by O2 in the presence of [NBu4][BH4]; the latter reagent further reduces the ketones to the alcohols.