A study of the electrochemical oxidation of 3,4-dihydro-2-quinoxalinone derivatives on a rotating platinum disk electrode with a ring showed that their reduction includes the successive detachment of two electrons and two protons

Investigation of the psychotropic activity of dihydroacridines / A. S. Saks, T. A. Kapitonenko, V. N. Charushin, V. I. Shilov, O. N. Chupakhin // Pharmaceutical Chemistry Journal. - 1980. - Vol. 13, № 10. - P. 1037-1040.