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Synthesis, Characterization and Catalytic Activity of Resin-based Diiron(III) Interphase Catalysts: Model for Methane Monooxygenase

Shan C., Qian G. R., Zhang L., Luo Y. L.

Polish Journal of Chemistry

2009

Vol. 83, nr 1

163-168

Three resin-based m-oxo diiron(III) interface catalysts have been successfully prepared to model the functional properties of methane monooxygenase (MMO). The catalysts were characterized and exhibited the catalytic activities in the oxidation of alkanes to responding alcohols and ketones in acetonitrile at room temperature by 30% hydroperoxide (H2O2) or tert-butyl hydroperoxide (TBHP) as the oxidants. For 2,6-di-tert-butylphenol as the substrate, the C-C coupling was found in the two reaction systems. The reaction mechanisms were proposed with the predominant radical mechanism.

Hydroxylation of Alkanes Using H2O2 or tert-BuOOH Catalyzed by Silica-based Fe(III) Interphase Catalysts

Luo Y., Zhang L., Zong M., Ménage S., Fontecave M.

Polish Journal of Chemistry

2006

Vol. 80, nr 8

1407-1414

Two novel silica-based organic-inorganic hybrid (interphase) Fe(III) catalysts have been successfully prepared by the flexible ligandmethod, characterized and applied to the efficient catalytic oxidation of various types of substrates using 30% H2O2 or tert-BuOOH under mild conditions. The catalysts can be recovered and reused for four reaction cycles with total turnover numbers being about 29 using cyclohexene as the substrate. The mechanism for the O-O bond cleavage was proposed based on the results in combination with previous experimental results.