Abstract <p>A novel electrochemical oxidation method utilizing potassium nitrate as a redox mediator is developed for the efficient oxidation of benzyl alcohols. In the two-phase electrolysis, the aqueous phase consisted of a 0.5% KNO<sub>3</sub> solution with a stoichiometric amount of sulfuric acid, while the organic phase comprised benzyl alcohols dissolved in chloroform. The electrolysis was carried out at ambient temperature employing an undivided cell with platinum electrodes to afford the corresponding aldehydes and ketones in high yields with &gt;99% selectivity. The role of potassium nitrate in facilitating electron transfer and enhancing oxidation is elucidated. This approach offers a promising alternative for the oxidation of benzyl alcohols.</p>

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Electrochemical Oxidation of Benzyl Alcohols: A Nitrate-Mediated Approach

  • N. Dhanabalan,
  • V. P. Muralidharan,
  • R. Jagatheesan,
  • S. S. Syed Abuthahir

摘要

Abstract

A novel electrochemical oxidation method utilizing potassium nitrate as a redox mediator is developed for the efficient oxidation of benzyl alcohols. In the two-phase electrolysis, the aqueous phase consisted of a 0.5% KNO3 solution with a stoichiometric amount of sulfuric acid, while the organic phase comprised benzyl alcohols dissolved in chloroform. The electrolysis was carried out at ambient temperature employing an undivided cell with platinum electrodes to afford the corresponding aldehydes and ketones in high yields with >99% selectivity. The role of potassium nitrate in facilitating electron transfer and enhancing oxidation is elucidated. This approach offers a promising alternative for the oxidation of benzyl alcohols.