High catalytic efficiency of palladium nanoparticles immobilized in a polymer membrane containing poly(ionic liquid) in Suzuki–Miyaura cross-coupling reaction

Yingying Gu (1) , Isabelle Favier (2) , Christian Pradel (2) , Douglas L. Gin (3) , Jean-Francois Lahitte (1) , Richard D. Noble (3) , Montserrat Gómez (2) , Jean-Christophe Remigy (1)

1 LGC - Laboratoire de Génie Chimique
2 LHFA - Laboratoire Hétérochimie Fondamentale et Appliquée
3 University of Colorado [Boulder]

The elaboration of a polymeric catalytic membrane containing palladium nanoparticles is presented. The membrane was prepared using a photo-grafting process with imidazolium-based ionic liquid monomers as modifying agent and microPES® as support membrane. Ionic liquid serves as a stabilizer and immobilizer for the catalytic species, i.e. palladium nanoparticles. The Suzuki–Miyaura cross-coupling reaction was carried out on the catalytic membrane in flow-through configuration. Complete conversion was achieved in 10 s through one single filtration, without formation of byproducts. The apparent reaction rate constant was three orders of magnitude greater than in a batch reactor. No catalyst leaching was detected. This membrane offers the possibility of continuous production with no need for a separation step of the catalyst from the reaction medium.

Mots clés: Catalytic membrane; Palladium nanoparticles; Flow-through; membrane reactor; Imidazolium-based ionic liquid; Suzuki–Miyauracross-coupling

Domaines: Génie chimique

Yingying Gu, Isabelle Favier, Christian Pradel, Douglas L. Gin, Jean-Francois Lahitte, et al.. High catalytic efficiency of palladium nanoparticles immobilized in a polymer membrane containing poly(ionic liquid) in Suzuki–Miyaura cross-coupling reaction. Journal of Membrane Science, 2015, vol. 492, pp.331-339. ⟨10.1016/j.memsci.2015.05.051⟩. ⟨hal-01286001⟩