Popis: |
Department of Chemistry, Nizam College, Osmania University, Hyderabad-500 001, India Manuscript received 7 February 2000, accepted 3 March 2000 N-(Benzylidene)-2-aminopyrimidine has been found to be reduced electrochemically in higher alkaline conditions (pH 9.8-13.0) with uptake of two electrons giving N-(benzyl)-2-aminopyrimidine. The products from controlled potential electrolysis (CPE) at mercury pool cathode are characterized. The protonation precedes the electronation in reduction process, which is found to be diffusion-controlled and irreversible from voltammetric techniques. The kinetic parameters such as heterogeneous forward rate constant (\(k_{fh}^o\)) and activation free energy change (∆G) are evaluated. A plausible reduction mechanism has been suggested. |