Catalytic Activity of μ-Carbido-Dimeric Iron(IV) Octapropylporphyrazinate in the 3,5,7,2',4'-Pentahydroxyflavone Oxidation Reaction with tert-Butyl Hydroperoxide
- Authors: Tyurin D.V.1, Zaitseva S.V.2, Kudrik E.V.1
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Affiliations:
- Ivanovo State University of Chemistry and Technology
- Krestov Institute of Solution Chemistry
- Issue: Vol 92, No 5 (2018)
- Pages: 870-875
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169990
- DOI: https://doi.org/10.1134/S0036024418050321
- ID: 169990
Cite item
Abstract
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.
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About the authors
D. V. Tyurin
Ivanovo State University of Chemistry and Technology
Author for correspondence.
Email: dimitar1991@yandex.ru
Russian Federation, Ivanovo, 153000
S. V. Zaitseva
Krestov Institute of Solution Chemistry
Email: dimitar1991@yandex.ru
Russian Federation, Ivanovo, 153000
E. V. Kudrik
Ivanovo State University of Chemistry and Technology
Email: dimitar1991@yandex.ru
Russian Federation, Ivanovo, 153000