Synthesis of μ-Oxo-bisiron(III)Porphyrin Compounds and Their Catalysis for Cyclohexane Hydroxylation
Fourteen substituted μ-oxo-bis[tetraphenylporphinatoiron(III)] derivants ([TXPPFeIII]2O) were synthesized by passing chlorotetraphenylporphinatoiron(III) (TPPFeIIICl) through a neutral alumina chromatographic column, and nine of which were used in cyclohexane hydroxylation with PhIO as a new type of...
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Published in | Journal of catalysis Vol. 178; no. 1; pp. 182 - 187 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier Inc
15.08.1998
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Fourteen substituted μ-oxo-bis[tetraphenylporphinatoiron(III)] derivants ([TXPPFeIII]2O) were synthesized by passing chlorotetraphenylporphinatoiron(III) (TPPFeIIICl) through a neutral alumina chromatographic column, and nine of which were used in cyclohexane hydroxylation with PhIO as a new type of catalyst under moderate conditions. The experiments have shown that the yields, rate constantskof the cyclohexane hydroxylation have a linear relationship to characteristic constants σ of substituents on porphyrin rings, a physical constant characterizing the electronic effects and steric effects of a substituent group, and that the product distributions and kinetic properties of the reactions are dependent on the reaction temperature, solvent as well as air. In contrast with monoironporphyrin TPPFeIIICl, μ-oxo-bisironporphyrin [TPPFeIII]2O is shown to have the better catalytic power for cyclohexane hydroxylation with PhIO under moderate conditions and stability to PhIO. The research results show that μ-oxo-bisironporphyrin can be used as the model compound of cytochrome P-450 monooxygenase. |
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ISSN: | 0021-9517 1090-2694 |
DOI: | 10.1006/jcat.1998.2138 |