The oxidation of ethylbenzene with ozone in the acetic acid-sulfuric acid system in the presence of Mn(II) acetate and cumene in the acetic acid-trifluoroacetic acid system in the presence of Co(II) acetate has been studied. The main factors that affect the catalytic ozonation of alkylbenzenes are discussed. A redox catalysis mechanism is proposed. The kinetic characteristics of the main stages of the catalytic cycle have been determined.