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<p>A facile and effective method for the green synthesis of 2-amino-4H-benzo[h]chromene derivatives via the multicomponent reaction in the presence of magnetic mesoporous silica nanoparticles containing ZrO<sub>2</sub>/CuO nanocomposite (M-MSN@ZrO<sub>2</sub>/CuO) as an efficient and reusable nanocatalyst is presented. Prepared Lewis acidic nanocatalyst was characterized using various techniques such as field emission scanning electron microscope, X-ray diffraction, energy-dispersive x-ray spectroscopy, vibrating sample magnetometry, elemental mapping and Fourier transform infrared spectroscopy. Obtained catalyst was used for the green synthesis of some 2-amino-4H-benzo [h] chromene derivatives under green conditions (water as solvent and room temperature) by yield of 85–97% after short reaction times. The structure of the obtained products was confirmed using spectroscopic methods.</p> Graphical abstract <p></p>

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Preparation and characterization of M-MSN@ZrO2/CuO as a novel and effective heterogeneous nanocatalyst for the green synthesis of 2-amino-4h-benzo[h]chromene derivatives at ambient conditions

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • Atieh Ahmadi,
  • Leila Moradi

摘要

A facile and effective method for the green synthesis of 2-amino-4H-benzo[h]chromene derivatives via the multicomponent reaction in the presence of magnetic mesoporous silica nanoparticles containing ZrO2/CuO nanocomposite (M-MSN@ZrO2/CuO) as an efficient and reusable nanocatalyst is presented. Prepared Lewis acidic nanocatalyst was characterized using various techniques such as field emission scanning electron microscope, X-ray diffraction, energy-dispersive x-ray spectroscopy, vibrating sample magnetometry, elemental mapping and Fourier transform infrared spectroscopy. Obtained catalyst was used for the green synthesis of some 2-amino-4H-benzo [h] chromene derivatives under green conditions (water as solvent and room temperature) by yield of 85–97% after short reaction times. The structure of the obtained products was confirmed using spectroscopic methods.

Graphical abstract