期刊
CHEMISTRYSELECT
卷 6, 期 9, 页码 1984-1993出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202004539
关键词
Green Chemistry; Heterogeneous Catalyst; Hybrids; Magnetic Nanoparticles; Tetrazoles
资金
- Research Council of Shiraz University
- INSF (the Iran National Science Foundation)
In this study, novel copper(II) ions decorated composite magnetic spheres were synthesized and their catalytic performance in green synthesis process was investigated. The results showed that the new catalyst exhibited high efficiency, environmental friendliness, and reusability.
The novel copper(II) ions decorated Fe3O4@SiO2 composite magnetic spheres were synthesized by grafting copper(II) ions onto glucosamine modified Fe3O4@SiO2 NPs. The magnetic Fe3O4@SiO2-TCT-GA-Cu(II) catalyst were characterized by varies physicochemical techniques such as FT-IR, FE-SEM, TEM, DLS, XRD, EDX, VSM, TGA, VSM, ICP, and UV-Vis. The catalytic performance of this novel catalyst was studied in the green preparation of 5-substituted 1H-tetrazole based hybrids via three-component and one-pot reaction of sodium azide, hydroxylamine hydrochloride, and various aldehydes in water and ethylene glycol, as a green solvent mixture. This green protocol provides significant advantages such as non-vigorous conditions, short reaction times, outstanding yield of desired tetrazoles, minimizing of chemical waste, wide-ranging substrate, quick and efficient work-up procedure and using environmentally benign, durable, cost effective, magnetically separable, reusable nanocatalyst.
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