Synthesis of N-aryl imidazoles catalyzed by copper nanoparticles on nanosized silica-coated maghemite
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor | Nuevos Materiales y Catalizadores (MATCAT) | es |
dc.contributor.author | Nador, Fabiana | - |
dc.contributor.author | Volpe, María A. | - |
dc.contributor.author | Alonso, Francisco | - |
dc.contributor.author | Radivoy, Gabriel | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Orgánica | es |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Síntesis Orgánica | es |
dc.date.accessioned | 2015-04-22T12:07:27Z | - |
dc.date.available | 2015-04-22T12:07:27Z | - |
dc.date.issued | 2014-09-09 | - |
dc.identifier.citation | Tetrahedron. 2014, 70(36): 6082-6087. doi:10.1016/j.tet.2014.04.003 | es |
dc.identifier.issn | 0040-4020 (Print) | - |
dc.identifier.issn | 1464-5416 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/46306 | - |
dc.description.abstract | A magnetically recoverable catalyst consisting of copper nanoparticles (CuNPs) on nanosized silica-coated maghemite is presented. The catalyst has been prepared under mild conditions by mixing the magnetic support with a freshly prepared suspension of CuNPs obtained by fast reduction of anhydrous CuCl2 with lithium sand and a catalytic amount of DTBB (4,4′-di-tert-butylbiphenyl) as electron carrier. This copper-based catalyst has shown to be very efficient in the N-(hetero)arylation of imidazole using (hetero)aryl bromides and iodides as arylating agents under ligand-free conditions. The catalyst is easily recovered by means of an external magnet and can be reutilized in three N-arylation cycles without apparent loss of catalytic activity. | es |
dc.description.sponsorship | This work was generously supported by the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Project PIP 738, Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT) Project PICT 2010 e 669 e Prest. BID and Universidad Nacional del Sur (UNS) Project PGI 24/Q044. | es |
dc.language | eng | es |
dc.publisher | Elsevier | es |
dc.rights | © 2014 Elsevier Ltd. | es |
dc.subject | Copper nanoparticles | es |
dc.subject | Magnetic catalyst | es |
dc.subject | Maghemite | es |
dc.subject | C–N cross-coupling | es |
dc.subject | N-arylation | es |
dc.subject | Imidazole | es |
dc.subject.other | Química Orgánica | es |
dc.title | Synthesis of N-aryl imidazoles catalyzed by copper nanoparticles on nanosized silica-coated maghemite | es |
dc.type | info:eu-repo/semantics/article | es |
dc.peerreviewed | si | es |
dc.identifier.doi | 10.1016/j.tet.2014.04.003 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.tet.2014.04.003 | es |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | es |
Aparece en las colecciones: | INV - MATCAT - Artículos de Revistas |
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Archivo | Descripción | Tamaño | Formato | |
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2014_Nador_etal_Tetrahedron_final.pdf | Versión final (acceso restringido) | 1,47 MB | Adobe PDF | Abrir Solicitar una copia |
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