Artículo
Suzuki–Miyaura cross-coupling of aryl iodides and phenylboronic acid over palladium-free CeO2 catalysts
Diez, Alejandra S.; Graziano Mayer, Marilyn Evelina
; Radivoy, Gabriel Eduardo
; Volpe, María Alicia
Fecha de publicación:
07/2014
Editorial:
Elsevier Science
Revista:
Applied Catalysis A: General
ISSN:
0926-860X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The Suzuki–Miyaura cross-coupling reaction between p-iodotoluene and phenylboronic acid is carried out over a series of ceria catalysts, at 150 °C, under N2 atmosphere, employing DMF as the solvent. The ceria catalysts present different BET area (determined from N2 isotherms at 77 K), different Ce4+/Ce3+ ratio (as measured by XPS), and different concentration and strength of acid sites (as measured by potentiometric titration with n-butylamine). The activity of the different samples depends on the concentration and strength of acid sites, although the participation of Ce3+ centers should not be neglected. Ceria catalysts are less active and less selective than a Pd/SiO2 sample. Although the catalytic performance of ceria catalysts is lower than the one corresponding to Pd/SiO2, the fact that a transition metal-free catalyst is active for SM reaction is highlighted.
Palabras clave:
Ceria
,
Suzuki-Miyaura
,
Cross-Coupling
,
Acid Sites
,
Ce3+/Ce4+
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Diez, Alejandra S.; Graziano Mayer, Marilyn Evelina; Radivoy, Gabriel Eduardo; Volpe, María Alicia; Suzuki–Miyaura cross-coupling of aryl iodides and phenylboronic acid over palladium-free CeO2 catalysts; Elsevier Science; Applied Catalysis A: General; 482; 7-2014; 24-30
Compartir
Altmétricas