K. S. Sharaeva, G. M. Shaymordanova, I. V. Safarova, E. F. Safarov, A. Ya. Gerchikov, Yu. S. Zimin, D. A. Nedopekina, A. Yu Spivak
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Kinetics and Mechanism of the Antioxidant Action of Phenothiazine and Its Derivatives in the Radical Chain Oxidation Reaction of Isopropyl Alcohol
A series of biologically active phenothiazine derivatives were studied as inhibitors of the free-radical chain oxidation of isopropyl alcohol by atmospheric oxygen. It was found that these compounds exhibit antioxidant properties, effectively suppressing the oxidation process. The key rate constants quantitatively characterizing the efficiency of their antioxidant action were determined. Mathematical modeling was used to analyze the proposed oxidation mechanism, identifying the critical stages that determine the inhibitory efficacy of phenothiazines. It was shown that the inhibitor regeneration reaction plays a significant role, leading to a high inhibition capacity. The application of mathematical modeling allowed the proposal of an oxidation mechanism that provides a comprehensive explanation for all currently available experimental and literature data.
期刊介绍：
The Journal of Physical Organic Chemistry is the foremost international journal devoted to the relationship between molecular structure and chemical reactivity in organic systems. It publishes Research Articles, Reviews and Mini Reviews based on research striving to understand the principles governing chemical structures in relation to activity and transformation with physical and mathematical rigor, using results derived from experimental and computational methods. Physical Organic Chemistry is a central and fundamental field with multiple applications in fields such as molecular recognition, supramolecular chemistry, catalysis, photochemistry, biological and material sciences, nanotechnology and surface science.
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