Recoverable palladium catalysts for Suzuki-Miyaura cross-coupling reactions based on organic-inorganic hybrid silica materials containing imidazolium and dihydroimidazolium salts

Montserrat Trilla, Guadalupe Borja, Roser Pleixats, Michel Wong Chi Man, Catherine Bied, Joël J.E. Moreau

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Resumen

The systems formed by palladium acetate [Pd(OAc)2] and hybrid silica materials prepared by sol-gel from monosilylated imidazolium and disilylated dihydroimidazolium salts show catalytic activity in Suzuki-Miyaura cross-couplings with challenging aryl bromides and chlorides. They are very efficient as recoverable catalysts with aryl bromides. Recycling is also possible with aryl chlorides, although with lower conversions. In situ formation of palladium nanoparticles has been observed in recycling experiments. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
Idioma originalInglés
Páginas (desde-hasta)2566-2574
PublicaciónAdvanced Synthesis and Catalysis
Volumen350
N.º16
DOI
EstadoPublicada - 3 nov 2008

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