The functionalized ionic liquid-stabilized palladium nanoparticles catalyzed selective hydrogenation in ionic liquid
2009
Abstract The functionalized ionic liquid (2,3-dimethyl-1-[3- N , N - bis (2-pyridyl)-propylamido] imidazolium hexafluorophosphate, [BMMDPA][PF 6 ]) stabilized and modified palladium nanoparticles were obtained by reducing palladium(II) complex with molecular hydrogen. The as-synthesized palladium nanoparticles have been characterized by different methods. It was demonstrated that the Pd nanoparticles were very efficient catalysts for the selective hydrogenation of the C C bonds of various functionalized alkenes under mild conditions in neat ionic liquid (1- n -butyl-2,3-dimethylimidazolium hexafluorophosphate, [BMMIM][PF 6 ]). An efficient separation of the products from reaction mixture (ionic liquid phase) was realized and the catalyst’s nano-dispersion and high performance could be preserved.
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