Catalytic Activity of μ-Carbido-Dimeric Iron(IV) Octapropylporphyrazinate in the 3,5,7,2',4'-Pentahydroxyflavone Oxidation Reaction with tert-Butyl Hydroperoxide


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Resumo

It is found for the first time that μ-carbido-dimeric iron(IV) octapropylporphyrazinate displays catalytic activity in the oxidation reaction of natural flavonol morin with tert-butyl hydroperoxide, with the catalyst being stable under conditions of the reaction. The kinetics of this reaction are studied. It is shown the reaction proceeds via tentative formation of a complex between the catalyst and the oxidant, followed by O‒O bond homolytic cleavage. The kinetics of the reaction is described in the coordinates of the Michaelis–Menten equation. A linear dependence of the apparent reaction rate constant on the concentration of the catalyst is observed, testifying to its participation in the limiting reaction step. The equilibrium constants and rates of interaction are found. A mechanism is proposed for the reaction on the basis of the experimental data.

Sobre autores

D. Tyurin

Ivanovo State University of Chemistry and Technology

Autor responsável pela correspondência
Email: dimitar1991@yandex.ru
Rússia, Ivanovo, 153000

S. Zaitseva

Krestov Institute of Solution Chemistry

Email: dimitar1991@yandex.ru
Rússia, Ivanovo, 153000

E. Kudrik

Ivanovo State University of Chemistry and Technology

Email: dimitar1991@yandex.ru
Rússia, Ivanovo, 153000

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