Electrochemical oxidation of 3-imidazoline 3-oxides

Abstract

Cyclic voltammetry was used to study the electrochemical oxidation of substituted 3-imidazoline 3-oxides. It was determined that the oxidation potentials (Ep/2) of the compounds depend on the nature of the substituents in the 1 and 4 positions of the ring. A correlation analysis ofEp/2 of the the compounds and σ I and σ R of the substituent constants in the 4 position of the ring was carried out. The obtained results show that oxidation of 3-imidazoline 3-oxides can occur at the nitrone or amine fragment, depending on the nature of the substituent in the 1 position of the ring.