2011
DOI: 10.1039/c0cc03730c
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Magnetically recoverable SiO2-coated Fe3O4nanoparticles: a new platform for asymmetric transfer hydrogenation of aromatic ketones in aqueous medium

Abstract: A magnetically recoverable chiral rhodium catalyst exhibited excellent catalytic activity and enantioselectivity in asymmetric transfer hydrogenation of aromatic ketones in aqueous medium, which could be recovered easily via a small magnet and used repetitively ten times without obviously affecting its enantioselectivity.

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Cited by 82 publications
(29 citation statements)
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“…Figure 11.10 shows TEM images and size distribution of the Pt-NPs stabilized with gum acacia. 69 These supported Pt-NPs have been shown to effectively catalyze the hydrogenation of nitroarenes to form arylamines. High product yields were obtained for a wide range of substrates, and the catalyst was recycled several times while maintaining its catalytic activity and selectivity.…”
Section: Hydrogenation Of Aromatic Compoundsmentioning
confidence: 99%
See 1 more Smart Citation
“…Figure 11.10 shows TEM images and size distribution of the Pt-NPs stabilized with gum acacia. 69 These supported Pt-NPs have been shown to effectively catalyze the hydrogenation of nitroarenes to form arylamines. High product yields were obtained for a wide range of substrates, and the catalyst was recycled several times while maintaining its catalytic activity and selectivity.…”
Section: Hydrogenation Of Aromatic Compoundsmentioning
confidence: 99%
“…69 The catalysts gave excellent catalytic activity (up to 99%) and enantioselectivity (up to 97%) for asymmetric hydrogenation of aromatic ketones. Furthermore, the catalysts were shown to be recoverable easily by the use of a small magnet and recycled at least ten times without affecting their catalytic activities and enantioselectivity.…”
Section: Hydrogenation Of Aromatic Compoundsmentioning
confidence: 99%
“…Functionalized magnetic nanoparticles (MNPs) have been employed in organic synthesis, showing excellent catalytic activities in oxidation [2], hydrogenation [3], C-C coupling [4], dihydroxylation of olefins [5], and amination [6] reactions. Currently, much attention is focused on the synthesis of magnetic core-shell structures by coating a SiO 2 shell around a preformed nanoparticle [7].…”
Section: Introductionmentioning
confidence: 99%
“…Rational improvement of the catalytic systems will require advanced materials that have a high reactivity toward the chemical reactions and can be recycled and reused through simple separation and regeneration methods [5]. Homogeneous catalysts immobilized on magnetic nanoparticles (MNPs) surface occupy a unique position among these advanced materials due to combining the advantages of both homogeneous and heterogeneous catalysts [4][5][6][7][8][9][10]. Because of large surface area, nanoparticles can carry a very large payload of catalytically active species and therefore exhibit high catalytic activity and selectivity [5].…”
Section: Introductionmentioning
confidence: 99%