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Two interesting reports in electrochemical oxidation of o-tolidine: presentation ECDispE mechanism and electrosynthesis of a diazine compound

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Abstract

Electrochemical oxidation of o-tolidine has been assessed in a mixture (70/30) of buffer/acetonitrile and various pHs. The electrochemical results corroborate that the mechanism of electrooxidation of o-tolidine acidic, neutral, and alkaline solutions are different, and three pH zones with different oxidation mechanisms were obtained: in the first region, a reversible oxidation reaction under the E mechanism, in the second region, observing the two one-electron oxidation–reduction under the ECDispE mechanism, and observation of the evidence of the ECE mechanism in the third region. In the continuation, electrosynthesis of a new azo compound has been reported in the third region. This process involves the electrochemical oxidation of o-tolidine in an aqueous phosphate buffer (pH = 7.2) in a divided cell using a carbon anode.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, Iran

    Saba Parandeh & Sadegh Khazalpour

  2. Nahavand Higher Education Complex, Bu-Ali Sina University, Hamedan, Iran

    Ameneh Amani

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  1. Saba Parandeh
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  2. Ameneh Amani
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Correspondence to Ameneh Amani.

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Parandeh, S., Amani, A. & Khazalpour, S. Two interesting reports in electrochemical oxidation of o-tolidine: presentation ECDispE mechanism and electrosynthesis of a diazine compound. J IRAN CHEM SOC (2024). https://doi.org/10.1007/s13738-024-03017-7

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