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题名: Polymer@silica composites with tunable outer and inner surface properties: a platform for aqueous asymmetric transfer hydrogenation
作者: Zhang, Xiaoming1, 2;  Zhao, Yaopeng1;  Peng, Juan1, 2;  Yang, Qihua1
刊名: GREEN CHEMISTRY
发表日期: 2015
DOI: 10.1039/c4gc02434f
卷: 17, 期:3, 页:1899-1906
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A highly efficient chiral solid catalyst was synthesized via in situ polymerization of a chiral monomer (1R,2R)-N-1-(4-vinylbenzenesulfonyl)-1,2-diphenylethane-1,2-diamine (VBS-DPEN) together with divinylbenzene (DVB) in the nanocages of mesoporous silica (FDU-12) followed by coordination with a metal precursor [Cp*RhCl2](2) (Cp* = pentamethylcyclopentadiene). The solid chiral catalyst with hydrophilic outer and hydrophobic inner surface properties could be well dispersed in aqueous solution and facilitate the adsorption of hydrophobic ketones in it. As a result, it could efficiently catalyze the aqueous asymmetric transfer hydrogenation (ATH) of ketones to afford 94% ee and a much higher TOF than homogeneous Rh-TsDPEN (TOF 585 versus 340 h(-1)). Our studies suggest that the dispersion of polymers in the nanopores of mesoporous silica could provide a new approach to the synthesis of high performance solid catalysts for organic reactions in water.
关键词[WOS]: MESOPOROUS SILICA ;  AROMATIC KETONES ;  HIGHLY EFFICIENT ;  CHIRAL CATALYST ;  WATER ;  REDUCTION ;  DESIGN
语种: 英语
WOS记录号: WOS:000351091300063
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146068
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Xiaoming,Zhao, Yaopeng,Peng, Juan,et al. Polymer@silica composites with tunable outer and inner surface properties: a platform for aqueous asymmetric transfer hydrogenation[J]. GREEN CHEMISTRY,2015,17(3):1899-1906.
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