Immobilization of a Pd(ii)-containing N-heterocyclic carbene ligand on porous organic polymers: efficient and recyclable catalysts for Suzuki–Miyaura reactions

Abstract

Two NHC–Pd(ii) complexes immobilized on porous organic polymers were successfully prepared via Scholl reactions and metallization. These complexes were applied in Suzuki–Miyaura reaction as heterogeneous catalysts with excellent yield and TON.

Eco-Friendly Production of Hyper-Cross-Linked Polymers Using Mechanosynthesis and Bioresources: A Critical Review

“…These HCPs were based on N,N′-dimethyl-benzimidazolium iodide and triphenylmethane . Suzuki–Miyaura reactions were also catalyzed by Pd-based HCPs with very low Pd contents of only 0.03 mol % achieving up to six complete cycles without significant loss of activity . Other reactions have also been subjected to the use of Pd-based catalysts associated with HCPs. , In the case of the catalytic conversion of CO 2 , Du et al summarized the state-of-the-art method of HCP-based metal ligands catalysts.…”

Hyper crosslinked polymer supported NHC stabilized gold nanoparticles with excellent catalytic performance in flow processes

“…The production of these functional supports bestowed improved thermal stability and potential routes to fine tune catalytically activity. These advancements led so far to several examples of catalytically active HCP·NHC–M, utilizing molecular Pd, 12 a ,17 Ru, 17 c Ir 17 c and Cu 18 as active metal centers for a variety of metal catalyzed reactions, e.g. C–C couplings, hydrogenations and condensation reactions.…”

Pd/Au bimetallic nanoparticle-anchored BiVO4/TiO2 nanotube arrays toward efficient photoelectrocatalytic Suzuki–Miyaura reactions

“…[28][29][30] However, because of their high surface-tovolume ratio, these nano-sized metal particles with good catalytic activity tend to agglomerate, resulting in particle enlargement during the reaction process. 31 Consequently, the big particles will erase the surface effect and hinder the catalytic activity. 32 In this case, anchoring metal nanoparticles on a semiconductor support can effectively avoid these problems, which not only suppresses the agglomeration and leaching of adjacent nanoparticles by virtue of the strong interactions between the metal particles and semiconductor support but also improves the catalytic reaction efficiency by providing more catalytic centers.…”