Electrochemical reduction of o-nitrotoluene at glassy carbon and stainless steel electrode at different pH

Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India E-mail : meenuvij@rediffmail.com Manuscript received 11 May 2006, revised 20 March 2007, accepted 22 March 2007 voltammogram of o-nitrotoluenc (aqueous-methanol solution) in BR buffer at different pHs, 4.0, 7.0 and 9.0 exhibits the one reduction peak and effect of scan rate on cathodic peak potential indicates these reactions arc irreversible. Constant current electrolysis in acidic and basic media of o-nitrotoluene gives o- oluidine and 2,2-dimethylazobenzene respectively as a major products which were confirmed by TLC, NMR, IR spectrum analysis