Croatica Chemica Acta, Vol. 89 No. 3, 2016.
Izvorni znanstveni članak
https://doi.org/10.5562/cca2854
Synthesis of Nano Magnetite Fe3O4 Based Vanadic Acid: A Highly Efficient and Recyclable Novel Nano-catalyst for the Synthesis of 4,4’-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)
Maliheh Safaiee
; Department of Medicinal Plants Production, Nahavand University, Nahavand, 6593139565, Iran
Mohammad Ali Zolfigol
; Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
Fatemeh Derakhshan-Panah
; Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
Vahid Khakyzadeh
; Department of Chemistry, Khaje Nasir Toosi University, Tehran 1969764499, Iran
Leila Mohammadi
; Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
Sažetak
Nano magnetic Fe3O4 based vanadic acid [MNPs@VO(OH)2] (average diameter 20–26 nm) has been synthesized by grafting VOCl3 on the Fe3O4 surface nanoparticles as a retrievable supporter to produce novel heterogeneous reusable solid acid with dual ability (Bronsted and Lewis acid) followed by stirring in the air. The resultant material was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) analysis and energy-dispersive X-ray spectroscopy (EDX). Significantly, the as-prepared [MNPs@VO(OH)2] exhibits a high catalytic activity in the synthesis of 4,4’-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols). Additionally, the newly synthesized heterogeneous solid acid catalyst can be reused for several times without apparent loss of its catalytic activity.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
nano magnetite Fe<sub>3</sub>O<sub>4</sub> based vanadic acid; 4,4’-(arylmethylene)bis(3-methyl-1-phenyl-1<i>H</i>-pyrazol-5-ols); acid catalysed reactions; heterogeneous; nanoparticles
Hrčak ID:
168223
URI
Datum izdavanja:
28.9.2016.
Posjeta: 2.038 *