A facile synthesis of cysteine–ferrite magnetic nanoparticles for application in multicomponent reactions—a sustainable protocol

Manoj B. Gawande; Alexandre Velhinho; Isabel D. Nogueira; C. A. A. Ghumman; O. M. N. D. Teodoro; Paula S. Branco

doi:10.1039/C2RA20955A

A facile synthesis of cysteine–ferrite magnetic nanoparticles for application in multicomponent reactions—a sustainable protocol†

Manoj B. Gawande,*^a Alexandre Velhinho,^b Isabel D. Nogueira,^c C. A. A. Ghumman,^d O. M. N. D. Teodoro^d and Paula S. Branco*^a

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* Corresponding authors

^a REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
E-mail: mbgawande@yahoo.co.in, m.gawande@fct.unl.pt, paula.branco@fct.unl.pt
Fax: +351 21 2948550
Tel: +351 21 2948300

^b CENIMAT/I3N Departmento de Ciências dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

^c Instituto de Ciência e Engenharia de Materiais e Superfícies, IST, Lisbon, Portugal

^d Centre for Physics and Technological Research (CeFITec), FCT, UNL, Lisbon, Portugal

Abstract

A facile, simple and environmentally friendly Fe₃O₄–cysteine MNP was synthesized without any additive or additional source of linkers. Fe₃O₄–cysteine MNPs were successfully used for the synthesis of β-amino carbonyl and hydroquinoline compounds, which were obtained in excellent yields via multicomponent reactions. Magnetic organocatalysts can be easily recovered by simple magnetic decantation and their catalytic activity remains unaltered after 9 consecutive cycles, making them environmentally friendly and widely applicable due to their efficiency, ease of handling, and cost effectiveness.

This article is part of the themed collection: Organic Collection: from theory to synthesis, from molecules to materials, catalysis and beyond

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DOI: https://doi.org/10.1039/C2RA20955A
Article type: Communication
Submitted: 16 May 2012
Accepted: 16 May 2012
First published: 13 Jun 2012

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RSC Adv., 2012,2, 6144-6149

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A facile synthesis of cysteine–ferrite magnetic nanoparticles for application in multicomponent reactions—a sustainable protocol

M. B. Gawande, A. Velhinho, I. D. Nogueira, C. A. A. Ghumman, O. M. N. D. Teodoro and P. S. Branco, RSC Adv., 2012, 2, 6144 DOI: 10.1039/C2RA20955A

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A facile synthesis of cysteine–ferrite magnetic nanoparticles for application in multicomponent reactions—a sustainable protocol†

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A facile synthesis of cysteine–ferrite magnetic nanoparticles for application in multicomponent reactions—a sustainable protocol

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