Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 71, Issue 8, Pages 1168-1179Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2018.1450975
Keywords
Click reaction; Cu2+ complexes; picolinimidoamide; Fe3O4@SiO2; magnetic nanoparticles
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A Cu(II) complex supported on Fe3O4@SiO2 core-shell magnetic nanoparticles (MNPs) was prepared and characterized by FT-IR, XRD, SEM, EDX, TEM, VSM, TGA, and AAS analysis. The load of Cu on picolinimidoamide ligand anchored on Fe3O4@SiO2 core-shell MNPs was determined as 1.22, 1.54, and 1.70 wt% using AAS, EDX and TGA analyses, respectively. Synthesized Cu(II) complex on Fe3O4@SiO2 MNPs efficiently catalyzed a click reaction between alkyl halides, alkynes, and sodium azide to synthesize corresponding triazoles in high to excellent yields. The catalyst was recovered using an external magnetic field, and recycled for subsequent reactions without substantial loss of efficiency. [GRAPHICS] .
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