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题名: Asymmetric ring-opening of epoxides on chiral Co(Salen) catalyst synthesized in SBA-16 through the "ship in a bottle" strategy
作者: Yang, Hengquan;  Zhang, Lei;  Su, Weiguang;  Yang, Qihua;  Li, Can
关键词: ship in a bottle ;  mesoporous cage-like material ;  salen catalyst ;  asymmetric ring-opening
刊名: JOURNAL OF CATALYSIS
发表日期: 2007-06-10
DOI: 10.1016/j.jcat.2007.03.006
卷: 248, 期:2, 页:204-212
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Chiral Co(Salen) complex was synthesized in the mesoporous cage of SBA-16 through the "ship in a bottle" method. The pore entrance size of SBA-16 was precisely tailored by varying the autoclaving time and silylation with phenyltrimethoxysilane to trap Co(Salen) complex in the cage of SBA-16. Chiral Co(Salen) trapped in SBA-16 shows enantioselectivity (up to 87-96% ee) as high as that of the homogeneous catalyst for the asymmetric ring opening of terminal epoxides and can be recycled at least 10 times with no apparent loss of activity. The activity for the catalyst trapped inside SBA-16 can be significantly increased when the surface is modified with organic groups. This work extends the "ship in a bottle" synthesis from microporous materials to mesoporous cage-like materials and develops an effective strategy to trap metal complex catalyst with large molecular size into the nanopores or cavities of mesoporous materials. (c) 2007 Elsevier Inc. All rights reserved.
关键词[WOS]: HETEROGENEOUS ENANTIOSELECTIVE CATALYST ;  HYDROLYTIC KINETIC RESOLUTION ;  MESOPOROUS SILICA ;  SALEN COMPLEXES ;  ZEOLITE-Y ;  TERMINAL EPOXIDES ;  EPOXIDATION ;  OXIDATION ;  MCM-41 ;  TEMPERATURE
语种: 英语
WOS记录号: WOS:000247327300006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140473
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

Recommended Citation:
Yang, Hengquan,Zhang, Lei,Su, Weiguang,et al. Asymmetric ring-opening of epoxides on chiral Co(Salen) catalyst synthesized in SBA-16 through the "ship in a bottle" strategy[J]. JOURNAL OF CATALYSIS,2007,248(2):204-212.
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