Preparation, Characterization, and Application of Preyssler Heteropoly Acid Immobilized on Magnetic Nanoparticles as a Green and Recoverable Catalyst for the Synthesis of Imidazoles

被引：0
|
作者：
A. Javid
A. Khojastehnezhad
A. J. L. Pombeiro
机构：
[1] Islamic Azad University,Department of Chemistry, Ahvaz Branch
[2] Islamic Azad University,Young Researchers and Elite Club, Mashhad Branch
[3] Universidade de Lisboa,Centro de Quimica Estrutural, Instituto Superior Técnico
来源：
Russian Journal of General Chemistry | 2017年 / 87卷
关键词：
Nanomagnetic catalyst; imidazole; Preyssler heteropoly acid; Ni; Zn; Fe; O; heteropolyacid; hydroxyapatite;
D O I：
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中图分类号：
学科分类号：
摘要：
An efficient, magnetically separable catalyst was synthesized by immobilization of Preyssler heteropoly acid (HPA) on Ni0.5Zn0.5Fe2O4 magnetite nanoparticles (MNPs) coated with hydroxyapatite (HA). The catalyst was characterized by scaning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR, energy dispersive spectroscopy (EDS), and TGA. Activity of this catalyst was tested in the synthesis of imidazole derivatives via one-pot three-component condensation of [9,10]-phenanthraquinone with aryl aldehydes and ammonium acetate at room temperature under solvent-free conditions.
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页码：3000 / 3005
页数：5
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