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• W1968981648 abstract "The synthesis and characterization of optically active complexes containing organic amides [-C(O)NHR] of the type [RhCl(COD)L], [RhCl(CO)2 L], [RhCl(PPh3)2L], [RuCl2(COD)L], [RuCl2(PPh3)2L], [Co(acac)L]X and [Ni(acac)L]X, where L = (S)-2-t-butylaminocarbonylpyrrolidine or (S)-2-(3-triethoxysilyl)propylaminocarbonylpyrrolidine are reported. Their cationic species were prepared in the presence of a non-coordinating counterion (X = PF6− or ClO4−). The amino acid derivative is bi-dentate with N,N-coordination. The metal complexes with ligands containing the triethoxysilyl group, were anchored to silica and modified USY-zeolite. These complexes have been characterized by spectroscopic and analytical techniques. The complexes anchored to the zeolite, which contains profuse supermicropores, show a higher activity for alkene hydrogenation and produce a remarkable increase of enantioselectivity ( > 95%) in the hydrogen ation of ethyl (Z)-α-benzoylaminocinnamate, taken as a model, and they represent a truly heterogeneous counterpart of the homogeneous organometallic catalysts." @default.
• W1968981648 created "2016-06-24" @default.
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• W1968981648 date "1992-06-01" @default.
• W1968981648 modified "2023-10-09" @default.
• W1968981648 title "Optically active complexes of transition metals (RhI, RuII, CoII and NiII) with 2-aminocarbonylpyrrolidine ligands. Selective catalysts for hydrogenation of prochiral olefins" @default.
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• W1968981648 doi "https://doi.org/10.1016/0022-328x(92)80121-d" @default.
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