Mesoporous palladium N,N'-Bis (3-allylsalicylidene)o-phenylenediamine-methyl acrylate resins as heterogeneous catalysts for the heck coupling reaction

Claudio Mella, Cecilia C. Torres, Gina Pecchi, Cristian H. Campos

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

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Resumen

Palladium N,N'-bis(3-allylsalicylidene)o-phenylenediamine complex (PdAS) immobilized onto mesoporous polymeric methyl acrylate (MA) based resins (PdAS(x)-MA, x = 1, 2, 5, or 10 wt.%) were successfully prepared as heterogeneous catalysts for the Heck reaction. The catalysts were synthesized via radical suspension polymerization using PdAS as a metal chelate monomer, divinylbenzene and MA as co-monomers. The effect of the PdAS(x) content on the physicochemical properties of the resins is also reported. The catalysts were characterized by using a range of analytical techniques. The large surface area ( > 580 m2·g-1)and hermal stability (up to 250°C) of the PdAS(x)-MA materials allows their application as catalysts in the C-C coupling reaction between iodobenzene and MA in the presence of trimethylamine at 120 °C using DMF as the solvent. The PdAS(10)-MA catalyst exhibited the highest catalytic performance with no significant catalytic loss being observed after five reuses, thereby indicating excellent catalyst stability in the reaction medium.

Idioma originalInglés
Número de artículo2612
PublicaciónMaterials
Volumen12
N.º16
DOI
EstadoPublicada - 1 ago 2019

Áreas temáticas de ASJC Scopus

  • Ciencia de los materiales (todo)

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