Robust Mn(iii) N-pyridylporphyrin-based biomimetic catalysts for hydrocarbon oxidations: heterogenization on non-functionalized silica gel versus chloropropyl-functionalized silica gel

Simple neutral and cationic Mn porphyrins were immobilized on ordinary chromatographic silica or chloropropyl-functionalized silica supports to yield efficient and reusable biomimetic catalysts for C–H activation and oxyfunctionalization of alkanes.

cis-Oxoruthenium complexes supported by chiral tetradentate amine (N4) ligands for hydrocarbon oxidations

We report the first examples of cis-dioxo ruthenium(vi) complexes supported by chiral N4 ligands and their stoichiometric and catalytic reactivities with alkanes and alkenes.

The Catalytic Function of Nonheme Iron (III) Complex for Hydrocarbon Oxidation

A detailed catalytic study of (where --[2-(3-hydroxy-1,3-diphenyl-allylideneamino)-ethylamino]--1,3-diphenyl-propen-1-ol) for hydrocarbon oxidation was carried out, focusing on the role of solvent, atmospheric dioxygen, and oxidant on catalytic efficiency. The data showed that catalyst was efficient in homogeneous hydrocarbon oxidations providing significant yields. Moreover,tert-BuOOH provided comparable oxidation yields with , slightly favoring the formation of alcohols and ketonesversusepoxides. Dioxygen intervened in the catalytic reaction, influencing the nature of oxidation products. The polarity of solvent strongly influenced the reaction rates and the nature of oxidation products. A mechanistic model is postulated assuming that functionsviathe formation of iron-hydroperoxo-species, followed by a radical-based mechanistic path.