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<p>Magnetic nanocatalysts have attracted significant attention in organic chemistry due to their high efficiency, recyclability, and eco-friendly nature. In this study, we report the synthesis and application of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Gly-ImH-CuI, a novel magnetic copper catalyst, fabricated by immobilizing CuI onto Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticles functionalized with glycyl imidazole. The catalyst was employed in a one-pot, three-component synthesis of <i>β</i>-hydroxy sulfide derivatives using aryl and heteroaryl iodides, 2-phenyloxirane derivatives, and carbon disulfide. The reaction proceeded under mild conditions using glycerol as a green solvent and potassium bicarbonate as a base, yielding high amounts of the desired products. The strong magnetic properties of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Gly-ImH-CuI enabled effortless separation from the reaction mixture, and the catalyst retained its high catalytic activity over eight consecutive cycles. Comprehensive characterization techniques confirmed the catalyst’s structural integrity and stability, including FT-IR, SEM, TEM, VSM, BET, XRD, and ICP-OES. This catalyst’s remarkable efficiency, ease of recovery, and outstanding recyclability highlight its potential for sustainable green chemistry applications, offering an environmentally friendly alternative for the synthesis of valuable organic compounds.</p>

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Sustainable β-hydroxy sulfide synthesis using a recyclable magnetic copper nanocatalyst

  • 期刊论文

  • 发表日期：

    2025年8月14日

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  • Tanmay Mandal,
  • Suranjana V. Mayani,
  • Suhas Ballal,
  • Abhayveer Singh,
  • Subhashree Ray,
  • Atreyi Pramanik,
  • Kamal Kant Joshi

摘要

Magnetic nanocatalysts have attracted significant attention in organic chemistry due to their high efficiency, recyclability, and eco-friendly nature. In this study, we report the synthesis and application of Fe3O4@SiO2-Gly-ImH-CuI, a novel magnetic copper catalyst, fabricated by immobilizing CuI onto Fe3O4@SiO2 nanoparticles functionalized with glycyl imidazole. The catalyst was employed in a one-pot, three-component synthesis of β-hydroxy sulfide derivatives using aryl and heteroaryl iodides, 2-phenyloxirane derivatives, and carbon disulfide. The reaction proceeded under mild conditions using glycerol as a green solvent and potassium bicarbonate as a base, yielding high amounts of the desired products. The strong magnetic properties of Fe3O4@SiO2-Gly-ImH-CuI enabled effortless separation from the reaction mixture, and the catalyst retained its high catalytic activity over eight consecutive cycles. Comprehensive characterization techniques confirmed the catalyst’s structural integrity and stability, including FT-IR, SEM, TEM, VSM, BET, XRD, and ICP-OES. This catalyst’s remarkable efficiency, ease of recovery, and outstanding recyclability highlight its potential for sustainable green chemistry applications, offering an environmentally friendly alternative for the synthesis of valuable organic compounds.