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Neutral or anionic

Novel Water-Soluble N-Heterocyclic Carbene Chelates for Transition Metal Catalysts Dr. Elizabeth T. Papish , Dept. of Chemistry, Drexel University Transfer Hydrogenation achieved with Ttz and NHC Ligands :.

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Neutral or anionic

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  1. Novel Water-Soluble N-Heterocyclic CarbeneChelates for Transition Metal Catalysts Dr. Elizabeth T. Papish, Dept. of Chemistry, Drexel UniversityTransfer Hydrogenation achieved with Ttz and NHC Ligands: • NHCcomplexes give faster catalysis w/ most substrates than Ttz complexes, however Ttz complexes perform better than similar RuTp complexes in the literature • Catalysts are robust and air stable, high % conversions, good functional group tolerance • Complexes with pendant ether and alcohol groups synthesized, may provide H+ relay sites or hemi-labile groups. Similarly uncoordinated triazole in Ttz, can be a pendant base. • Future goals: enantioselectivity, H bonds closer to the metal, use of H2 gas • 2˚ or 3˚ amine • Neutral or anionic • Bidentate or tridentate

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