Robust, efficient, and recyclable catalysts from the impregnation of preformed dendrimers containing palladium nanoparticles on a magnetic support

Christophe Deraedt (1) , Dong Wang (1) , Lionel Salmon (2) , Laetitia Etienne (3) , Christine Labrugère (4) , Jaime Ruiz (1) , Didier Astruc (1)

1 ISM - Institut des Sciences Moléculaires
2 LCC - Laboratoire de chimie de coordination
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
4 PLACAMAT - Plateforme Aquitaine de Caractérisation des Matériaux

The simple impregnation of γ-Fe2O3(core)/SiO2(shell) magnetic nanoparticles with a dendrimer that contains stabilized Pd nanoparticles is presented as a new method to produce highly efficient heterogeneous catalysts. This technique provides much better stability, recyclability, and activity in C[BOND]C cross-coupling reactions and selective oxidation of benzyl alcohol to benzaldehyde in water than unsupported Pd nanoparticles.

Mots clés: cross-coupling; dendrimers; nanoparticles; palladium; supported catalysts

Domaines: Matériaux

Christophe Deraedt, Dong Wang, Lionel Salmon, Laetitia Etienne, Christine Labrugère, et al.. Robust, efficient, and recyclable catalysts from the impregnation of preformed dendrimers containing palladium nanoparticles on a magnetic support. ChemCatChem, 2015, 7 (2), pp.303-308. ⟨10.1002/cctc.201402775⟩. ⟨hal-01110648⟩