Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives

A superparamagnetic graphene oxide/Fe3O4/l-proline nano hybrid that was obtained from the non-covalent immobilization of l-proline on graphene oxide/Fe3O4 nanocomposite was used as a new magnetically separable catalyst for the efficient synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ol) derivativ...

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Main Authors: Mosadegh Keshavarz, Amanollah Zarei Ahmady, Luigi Vaccaro, Maryam Kardani
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/23/2/330
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author Mosadegh Keshavarz
Amanollah Zarei Ahmady
Luigi Vaccaro
Maryam Kardani
author_facet Mosadegh Keshavarz
Amanollah Zarei Ahmady
Luigi Vaccaro
Maryam Kardani
author_sort Mosadegh Keshavarz
collection DOAJ
description A superparamagnetic graphene oxide/Fe3O4/l-proline nano hybrid that was obtained from the non-covalent immobilization of l-proline on graphene oxide/Fe3O4 nanocomposite was used as a new magnetically separable catalyst for the efficient synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ol) derivatives. The prepared heterogeneous catalyst was characterized using FTIR, TGA, DTG, XRD, TEM, SEM, and elemental analysis techniques. Short reaction times (5–15 min), excellent yields (87–98%), and simple experimental procedure with an easy work-up are some of the advantages of the introduced catalyst.
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spelling doaj.art-3fe8465b80e14571974726eda08ad2b82022-12-22T02:48:50ZengMDPI AGMolecules1420-30492018-02-0123233010.3390/molecules23020330molecules23020330Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole DerivativesMosadegh Keshavarz0Amanollah Zarei Ahmady1Luigi Vaccaro2Maryam Kardani3Department of Gas and Petroleum, Yasouj University, Gachsaran 75918-74831, IranNanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 14536-33143, IranDepartment of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, ItalyMarine Pharmaceutical Science Research Center, Ahvaz JundiShapur University of Medical sciences, Ahvaz 14536-33143, IranA superparamagnetic graphene oxide/Fe3O4/l-proline nano hybrid that was obtained from the non-covalent immobilization of l-proline on graphene oxide/Fe3O4 nanocomposite was used as a new magnetically separable catalyst for the efficient synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ol) derivatives. The prepared heterogeneous catalyst was characterized using FTIR, TGA, DTG, XRD, TEM, SEM, and elemental analysis techniques. Short reaction times (5–15 min), excellent yields (87–98%), and simple experimental procedure with an easy work-up are some of the advantages of the introduced catalyst.http://www.mdpi.com/1420-3049/23/2/330">l-prolinenanocompositegraphene oxideheterogeneous catalystmagnetically separable catalyst
spellingShingle Mosadegh Keshavarz
Amanollah Zarei Ahmady
Luigi Vaccaro
Maryam Kardani
Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
Molecules
">l-proline
nanocomposite
graphene oxide
heterogeneous catalyst
magnetically separable catalyst
title Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
title_full Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
title_fullStr Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
title_full_unstemmed Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
title_short Non-Covalent Supported of l-Proline on Graphene Oxide/Fe3O4 Nanocomposite: A Novel, Highly Efficient and Superparamagnetically Separable Catalyst for the Synthesis of Bis-Pyrazole Derivatives
title_sort non covalent supported of l proline on graphene oxide fe3o4 nanocomposite a novel highly efficient and superparamagnetically separable catalyst for the synthesis of bis pyrazole derivatives
topic ">l-proline
nanocomposite
graphene oxide
heterogeneous catalyst
magnetically separable catalyst
url http://www.mdpi.com/1420-3049/23/2/330
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AT amanollahzareiahmady noncovalentsupportedoflprolineongrapheneoxidefe3o4nanocompositeanovelhighlyefficientandsuperparamagneticallyseparablecatalystforthesynthesisofbispyrazolederivatives
AT luigivaccaro noncovalentsupportedoflprolineongrapheneoxidefe3o4nanocompositeanovelhighlyefficientandsuperparamagneticallyseparablecatalystforthesynthesisofbispyrazolederivatives
AT maryamkardani noncovalentsupportedoflprolineongrapheneoxidefe3o4nanocompositeanovelhighlyefficientandsuperparamagneticallyseparablecatalystforthesynthesisofbispyrazolederivatives