期刊
NANO TODAY
卷 8, 期 4, 页码 342-350出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.nantod.2013.07.002
关键词
Superhydrophobicity; Chirality; Mesoporous polymer; TsDPEN ligand; Asymmetric transfer hydrogenation
资金
- NSFC [U1162201, 21273197]
- National High-Tech Research and Development program of China [2013AA065301]
- Science and Technology Innovative Team of Zhejiang Province [2012R10014-01]
- Fundamental Research Funds for the Central Universities [2013XZZX001]
Homogeneous chiral catalysts usually show higher catalytic activities than corresponding heterogeneous chiral catalysts, because of their easy interaction between catalytically active sites with reactant molecules. We demonstrate here superhydrophobic, chiral, and mesoporous catalysts (TsDPEN-Ru) synthesized from copolymerization of N-p-styrenesulfonyl-1,2-diphenylethylenediamine (V-TsDPEN) with divinylbenzene and loading of Ru species exhibiting much higher activities in asymmetric transfer hydrogenation (ATH) of ketones in aqueous solution than corresponding homogeneous chiral catalyst. This phenomenon is strongly related to the unique features of high enrichment for the reactants in superhydrophobic TsDPEN-Ru catalysts due to their good wettability, as well as easy transfer of product from the catalyst into water phase. These features open a door for design and developing a wide variety of chiral catalysts for asymmetric catalysis. (c) 2013 Elsevier Ltd. All rights reserved.
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