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<p>A bi-phase electrochemical method for the selective oxidation of piperonol to piperonaldehyde has been developed using an undivided cell equipped with carbon (C) and stainless steel (SS) electrodes. The reaction proceeds in an aqueous NaNO<sub>3</sub> electrolyte with a catalytic amount of H<sub>2</sub>SO<sub>4</sub> under mild conditions, affording piperonaldehyde in 78% yield with excellent current efficiency. Systematic optimization of electrolysis parameters revealed key factors governing selectivity and efficiency. This operationally simple, scalable process demonstrates a sustainable approach to aldehyde synthesis via electrocatalysis, highlighting its potential for industrial application in fine chemical production.</p>

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Selective electrochemical oxidation of piperonol by bi-phase electrolysis

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • M. Thairiyaraja,
  • M. S. Viswaksenan,
  • M. Ilayaraja,
  • R. Jagatheesan,
  • Paulraj Arunkumar

摘要

A bi-phase electrochemical method for the selective oxidation of piperonol to piperonaldehyde has been developed using an undivided cell equipped with carbon (C) and stainless steel (SS) electrodes. The reaction proceeds in an aqueous NaNO3 electrolyte with a catalytic amount of H2SO4 under mild conditions, affording piperonaldehyde in 78% yield with excellent current efficiency. Systematic optimization of electrolysis parameters revealed key factors governing selectivity and efficiency. This operationally simple, scalable process demonstrates a sustainable approach to aldehyde synthesis via electrocatalysis, highlighting its potential for industrial application in fine chemical production.