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<p>The synthesis of 4,4′-diaminotriarylmethane derivatives plays a crucial role in medicinal chemistry and drug discovery. This study presents a simple, efficient, and eco-friendly method for the one-step synthesis of various 4,4′-diaminotriarylmethane derivatives using Fe<sub>3</sub>O<sub>4</sub>@L-proline@SO<sub>3</sub>H as a catalyst at 80&#xa0;°C in EtOH solvent. The triarylmethane derivatives were synthesized in 73–92% yields. The resulting products were characterized using melting point determination, FT-IR spectroscopy, <sup>1</sup>H NMR spectroscopy, <sup>13</sup>C NMR spectroscopy, CHN analysis, and HRMS analysis. To assess the catalyst’s properties, extensive characterization techniques including FT-IR, XRD, SEM, XPS, TEM, VSM, TGA, and BET analyses were used. These analytical techniques were employed to confirm the identity and purity of the synthesized compounds.</p>

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Green synthesis of 4,4′-diaminotriarylmethane derivatives using a recyclable magnetic acidic nano catalyst

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月9日

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  • Shahin Karamifar,
  • Farahnaz K. Behbahani,
  • Elham Keshmirizadeh

摘要

The synthesis of 4,4′-diaminotriarylmethane derivatives plays a crucial role in medicinal chemistry and drug discovery. This study presents a simple, efficient, and eco-friendly method for the one-step synthesis of various 4,4′-diaminotriarylmethane derivatives using Fe3O4@L-proline@SO3H as a catalyst at 80 °C in EtOH solvent. The triarylmethane derivatives were synthesized in 73–92% yields. The resulting products were characterized using melting point determination, FT-IR spectroscopy, 1H NMR spectroscopy, 13C NMR spectroscopy, CHN analysis, and HRMS analysis. To assess the catalyst’s properties, extensive characterization techniques including FT-IR, XRD, SEM, XPS, TEM, VSM, TGA, and BET analyses were used. These analytical techniques were employed to confirm the identity and purity of the synthesized compounds.