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<p>A sustainable and effective approach for manufacturing heterocyclic compounds was established utilizing Fe₃O₄ nanoparticles in the presence of a neodymium static magnetic field (about 9000 G). Pyrimidine, benzimidazole, quinoxaline, and benzodiazepine derivatives were swiftly synthesized at ambient temperature with excellent efficiency; no reaction transpired in the absence of a magnetic field. TEM and VSM investigations validated nanoscale dimensions (9–50&#xa0;nm) and robust magnetic characteristics, facilitating efficient catalysis and straightforward recovery. The produced compounds were validated using FT-IR, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and elemental analysis. The technology markedly decreased reaction time, reduced energy consumption, eliminated hazardous chemicals, and offers a sustainable pathway for synthesizing physiologically relevant heterocycles.</p>

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Neodymium magnetic field meets nanocatalysis: a sustainable route to novel azines and condensed heterocycles

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月21日

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  • H. A. Morsy,
  • Ahmed H. Moustafa,
  • Hassan A. El-Sayed,
  • Mohamed G. Assy,
  • Doaa A. Elsayed

摘要

A sustainable and effective approach for manufacturing heterocyclic compounds was established utilizing Fe₃O₄ nanoparticles in the presence of a neodymium static magnetic field (about 9000 G). Pyrimidine, benzimidazole, quinoxaline, and benzodiazepine derivatives were swiftly synthesized at ambient temperature with excellent efficiency; no reaction transpired in the absence of a magnetic field. TEM and VSM investigations validated nanoscale dimensions (9–50 nm) and robust magnetic characteristics, facilitating efficient catalysis and straightforward recovery. The produced compounds were validated using FT-IR, 1H NMR, 13C NMR, and elemental analysis. The technology markedly decreased reaction time, reduced energy consumption, eliminated hazardous chemicals, and offers a sustainable pathway for synthesizing physiologically relevant heterocycles.