Journal
RSC ADVANCES
Volume 5, Issue 80, Pages 64850-64857Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra10534j
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Funding
- University of Hakim Sabzevari
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In this research, a magnetically-recoverable catalyst (NiFe2O4@SiO2-H3PMo12O40) was prepared by supporting phosphomolybdic acid (H3PMo12O40) onto silica-coated NiFe2O4 nanoparticles. The prepared sample was characterized by FT-IR, TEM, SEM and VSM techniques and then the catalytic activity of this catalyst was investigated in the synthesis of tri- and tetra-substituted imidazole derivatives. More importantly, the catalyst was easily isolated from the reaction mixture by a magnetic bar and reused at least ten times without significant degradation in its activity.
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