The acidity constants of the exhaustively substituted nitrosophenols with phenyl and ester substituents are determined. It was found that these compounds are more acidic than nitrosophenols with methyl groups, but less acidity than the persubstituted nitrosophenols with pyridine substituents. Quantum-

Kinetics and selectivity of indirect electrocatalytic resorcinol oxidation by active oxygen forms (AOF) in situ generated from oxygen in gas diffusion electrode (GDE) mesostructured carbon CMK‑3 and Pt, Pb/PbO2 at different pH were studied. The high resorcinol oxidation process effectivity in both Pt-GDE at pH=10 (99 %) and Pb/PbO2 + Fe2+ at рН=2 (99 %) systems was shown; the resorcinol oxidation scheme was proposed