Journal
GREEN CHEMISTRY LETTERS AND REVIEWS
Volume 12, Issue 4, Pages 395-406Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17518253.2019.1679263
Keywords
Magnetized agar; nanocatalyst; nanoparticles; triazole; green chemistry
Funding
- Research Council of the Iran University of Science and Technology
- Iran National Science Foundation (INSF)
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A novel, green and cost-effective heterogeneous nanocatalyst was synthesized by supporting copper (I) oxide nanoparticles on magnetic agar (Cu2O/Agar@Fe3O4). Then, it was characterized with multiple techniques, such as scanning electron microscopy and transmission electron microscopy images, energy-dispersive X-ray analysis, Fourier-transform infrared (FT?IR) spectroscopy, thermogravimetric (TG) analysis, X-ray diffraction pattern, vibrating sample magnetometer curve, and inductively coupled plasma analysis. The catalytic activity of the newly designed catalyst was investigated in a one-pot three-component reaction of alkyl halides, sodium azide, and alkynes to obtain 1,4?disubstituted 1,2,3?triazoles in high yields in water?ethanol media. The present catalyst was simply separated from the reaction media by an external magnet and reused at least five subsequent runs without significant activity loss. [GRAPHICS] .
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