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<p>Magnetic Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-2-aminothiophenol-Ni nanocomposite was synthesized and demonstrates its capability as a reusable and heterogeneous catalyst in the efficient synthesis of various 2-arylbenzothiazoles derivatives through the two-component condensation of 2-aminothiophenol with various aromatic aldehydes, and its catalytic activity was compared with Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-2-aminothiophenol-Cu. This reaction offers benign, simplicity, environmental friendliness, and cost-effectiveness. The catalyst can be easily separated and recycled by employing magnetic decantation with the using an external magnet. The characterization of the catalyst was performed using Fourier Transform Infrared spectroscopy (FT IR), Field Emission Scanning Electron Microscopy (FESEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS), Thermogravimetric analysis (TGA), Vibrating Sample Magnetometry (VSM), and X-ray diffraction (XRD) techniques.</p> Graphical Abstract <p>The findings from the evaluation of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-2-aminothiophenol-Ni and -Cu, a new magnetically recyclable nano-structured catalyst used for the effective synthesis of 2-arylbenzothiazoles, are summarized.</p>

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Challenge of Fe3O4@SiO2-2-aminothiophenol-Ni and -Cu: A New Magnetically Reusable nano-structured Catalyst for the Efficient Synthesis of 2-arylbenzothiazoles

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Mahsa Hassanzadeh,
  • Nader Noroozi Pesyan,
  • Khadijeh Ojaghi Aghbash

摘要

Magnetic Fe3O4@SiO2-2-aminothiophenol-Ni nanocomposite was synthesized and demonstrates its capability as a reusable and heterogeneous catalyst in the efficient synthesis of various 2-arylbenzothiazoles derivatives through the two-component condensation of 2-aminothiophenol with various aromatic aldehydes, and its catalytic activity was compared with Fe3O4@SiO2-2-aminothiophenol-Cu. This reaction offers benign, simplicity, environmental friendliness, and cost-effectiveness. The catalyst can be easily separated and recycled by employing magnetic decantation with the using an external magnet. The characterization of the catalyst was performed using Fourier Transform Infrared spectroscopy (FT IR), Field Emission Scanning Electron Microscopy (FESEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS), Thermogravimetric analysis (TGA), Vibrating Sample Magnetometry (VSM), and X-ray diffraction (XRD) techniques.

Graphical Abstract

The findings from the evaluation of Fe3O4@SiO2-2-aminothiophenol-Ni and -Cu, a new magnetically recyclable nano-structured catalyst used for the effective synthesis of 2-arylbenzothiazoles, are summarized.