Collect. Czech. Chem. Commun. 1987, 52, 66-71

Anodic voltammetry of pyrazolone derivatives with the help of the self-cleaning rotating electrode

Vesselin C. Noninskia and Emanuel B. Sobowaleb

a Higher Institute of Chemical Technology, LEPGER, Sofia 1156, Bulgaria
b Medical Academy, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Sofia 1000, Bulgaria


Nine pyrazolone derivatives have been studied by anodic voltammetry using gold self-cleaning rotating electrode (SRE). Voltamograms of good reproducibility are presented. On the basis of voltammetric data a mechanism is proposed for the electrochemical oxidation of sodium 1-phenyl-2,3-dimethyl-4-(N-methylamino)pyrazol-5-one-N-methansulphonate and 1-phenyl-2,3-dimethyl-4-(dimethylamino)pyrazol-5-one in protic medium.