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题名: Highly efficient solid catalysts for asymmetric hydrogenation fabricated via facile adsorption of Rh-MonoPhos on porous silicas
作者: Zhang, Xiaoming1, 2;  Liu, Xiao1, 2;  Peng, Juan1, 2;  Zhao, Yaopeng1;  Yang, Qihua1
刊名: CATALYSIS SCIENCE & TECHNOLOGY
发表日期: 2014
DOI: 10.1039/c3cy01063e
卷: 4, 期:4, 页:1012-1016
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Via very simple and facile adsorption, Rh-MonoPhos was successfully immobilized on mesoporous silicas with channel-like and cage-like pores. The resulting solid catalyst showed higher activity (TOF: 4800 vs. 936 h(-1)) and enantioselectivity (96.0% vs. 94% ee) than its homogeneous counterpart in the asymmetric hydrogenation of itaconic acid dimethyl ester under similar conditions, probably due to the high dispersion of Rh-MonoPhos on mesoporous silicas. Significant rate enhancement was observed with Rh-MonoPhos immobilized on mesoporous silicas with cage-like pores in comparison with channel-like pores, reflecting that cage-like pores could facilitate the mass transport. The solid catalyst could be recycled several times without an obvious decrease in both activity and enantioselectivity.
关键词[WOS]: MESOPOROUS SILICA ;  ENANTIOSELECTIVE HYDROGENATION ;  LIGANDS ;  PHOSPHORAMIDITES ;  IMMOBILIZATION ;  OLEFINS
语种: 英语
WOS记录号: WOS:000332928300017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145925
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.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Xiaoming,Liu, Xiao,Peng, Juan,et al. Highly efficient solid catalysts for asymmetric hydrogenation fabricated via facile adsorption of Rh-MonoPhos on porous silicas[J]. CATALYSIS SCIENCE & TECHNOLOGY,2014,4(4):1012-1016.
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