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Bis-N,N-aminophosphine (PNP) crosslinked poly(p-tert-butyl styrene) particles: A new support for heterogeneous palladium catalysts for Suzuki coupling reactions

Abstract : Crosslinked polymer particles carrying hemilabile bis-N,N-aminophosphine (PNP) moieties are obtained by the copolymerization of a PNP-derived monomer bearing four vinyl fragments as cross-linkers, with para-tert-butylstyrene and divinylbenzene, using free radical copolymerization in presence of AIBN, performed in aqueous dispersed medium. This new support was characterized by thermogravimetric analysis, elemental analysis, laser diffraction, solid state NMR. The PNP moiety could allow monochelation to palladium. The resulting insoluble Pd-catalyst revealed to be very active for Suzuki cross-coupling with several substrates, allowing separation of the product from the catalyst by filtration. The final palladium PS-PNP catalyst could be reused for several catalytic cycles.
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https://hal.archives-ouvertes.fr/hal-02146522
Contributor : Pierre-Yves Dugas Connect in order to contact the contributor
Submitted on : Tuesday, November 24, 2020 - 6:22:40 PM
Last modification on : Wednesday, October 13, 2021 - 4:12:03 PM
Long-term archiving on: : Thursday, February 25, 2021 - 9:04:55 PM

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Vito Vece, Kai Szeto, Marc Charlin, Pascal Rouge, Aimery de Mallmann, et al.. Bis-N,N-aminophosphine (PNP) crosslinked poly(p-tert-butyl styrene) particles: A new support for heterogeneous palladium catalysts for Suzuki coupling reactions. Catalysis Communications, Elsevier, 2019, pp.105715. ⟨10.1016/j.catcom.2019.105715⟩. ⟨hal-02146522⟩

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