Kinetics and Mechanism of Liquid Phase Oxidation of Organic Compounds in the Presence of Cyclohexanone Transformation Products Acting as Antioxidants

Sharaeva, Karina Sergeevna; Safarova, Irina Vladimirovna; Okhirov, Shokhrukh M; Latypova, Elvira Razifovna; Gerchikov, Anatoly Yakovlevich

doi:10.22036/pcr.2025.549285.2754

Kinetics and Mechanism of Liquid Phase Oxidation of Organic Compounds in the Presence of Cyclohexanone Transformation Products Acting as Antioxidants

Document Type : Regular Article

Authors

Karina Sergeevna Sharaeva

Irina Vladimirovna Safarova

Shokhrukh M Okhirov

Elvira Razifovna Latypova

Anatoly Yakovlevich Gerchikov

Ufa State University of Science and Technology, 32 Z. Validi St., Ufa, Republic of Bashkortostan, Russia, 450076

https://doi.org/10.22036/pcr.2025.549285.2754

Abstract

The antioxidant properties of cyclohexanone transformation products were investigated using model radical‑chain oxidations of 1,4‑dioxane and isopropyl alcohol by molecular oxygen (air) at a temperature of 348 K. Oxygen‑uptake kinetic curves during the oxidation process were obtained using a universal differential manometric setup under various initial conditions. It was shown that the compounds studied exhibit antioxidant activity, the mechanism of which varies depending on the nature of the oxidized substrate. For the two substrates examined, a reaction mechanism was proposed that satisfactorily agrees with the experimental data. Rate constants were determined that quantitatively characterize the efficiency of the antioxidant action.

Graphical Abstract