The kinetics of tetrahydrofuran oxidation inhibited by nitroxyl radicals in aqueous solution was studied, the rate constants and inhibition coefficients were determined. The key reaction determining the antioxidant activity is the interaction of nitroxyl radicals with peroxide radicals of the substrate. This is confirmed by the correlation between the logarithm of the inhibition rate constants and the reduction potential of the oxoammonium cation/nitroxyl radical pair, as well as by high inhibition coefficients for compounds with low values of this potential.
V.A. Ryabkova (Wed,) studied this question.