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Catalysts 2019, 9(4), 348;

Versatile Sulfathiazole-Functionalized Magnetic Nanoparticles as Catalyst in Oxidation and Alkylation Reactions

Department of Organic Chemistry University of Cordoba Edificio Marie Curie, Ctra Nnal IV-A, Km. 396, E14014 Cordoba, Spain
Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 117198 Moscow, Russia
Author to whom correspondence should be addressed.
Received: 20 February 2019 / Revised: 27 March 2019 / Accepted: 28 March 2019 / Published: 9 April 2019
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Catalyst design and surface modifications of magnetic nanoparticles have become attractive strategies in order to optimize catalyzed organic reactions for industrial applications. In this work, silica-coated magnetic nanoparticles with a core-shell type structure were prepared. The obtained material was successfully functionalized with sulfathiazole groups, which can enhance its catalytic features. The material was fully characterized, using a multi-technique approach. The catalytic performance of the as-synthesized material was evaluated in (1) the oxidation of benzyl alcohol to benzaldehyde and (2) the microwave-assisted alkylation of toluene with benzyl chloride. Remarkable conversion and selectivity were obtained for both reactions and a clear improvement of the catalytic properties was observed in comparison with unmodified γ-Fe2O3/SiO2 and γ-Fe2O3. Noticeably, the catalyst displayed outstanding magnetic characteristics which facilitated its recovery and reusability. View Full-Text
Keywords: γ-Fe2O3; sulfathiazole; maghemite; benzyl alcohol oxidation; alkylations γ-Fe2O3; sulfathiazole; maghemite; benzyl alcohol oxidation; alkylations

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Ostovar, S.; Rodríguez-Padrón, D.; Saberi, F.; Balu, A.M.; Luque, R. Versatile Sulfathiazole-Functionalized Magnetic Nanoparticles as Catalyst in Oxidation and Alkylation Reactions. Catalysts 2019, 9, 348.

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