| Popis: |
The electrochemical reduction of 2-arylhydrazono-1-phenylaminobutane-1,3-diones has been studied over a wide pH range at a glassy carbon electrode. These compounds give one four-electron wave corresponding to the reduction of the hydrazono group, and one two-electron wave corresponding to the C-N reductive bond, whereas in the nitro substituted compound, two four-electron waves corresponding to the reduction of nitro and hydrazono groups, and one two-electron wave corresponding to the C-N reductive bond were observed. On the basis of linear and cyclic sweep voltammetry, coulometry, IR , mass, and 1 H NMR spectral studies, and product identification, a reaction mechanism is suggested to account for the reduction mechanism. |
