Chiral Amine-Polyoxometalate Hybrids as Recoverable Asymmetric Enamine Catalysts under Neat and Aqueous Conditions
文献类型:期刊论文
作者 | Li, Jiuyuan1; Hu, Shenshen1; Luo, Sanzhong1; Cheng, Jin-Pei2,3 |
刊名 | EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
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出版日期 | 2009 |
期号 | 1页码:132-140 |
关键词 | Polyoxometalates Amines Organocatalysis Immobilization Biphasic Catalysis |
ISSN号 | 1434-193X |
DOI | 10.1002/ejoc.200800915 |
英文摘要 | Solid acid-chiral amine hybrids have been synthesized and explored as recyclable and reusable enamine-type asymmetric catalysts. Simple chiral amine-polyoxometalate (CA-POM) hybrids were identified as the optimal catalysts to promote a range of enamine-based transformations with high activity and excellent stereoselectivity under either neat or aqueous conditions. A catalyst loading as low as 0.33 mol-% (1 mol-% loading of chiral amine) was sufficient to achieve fast reactions and high stereoselectivities. Under both conditions, the CA-POM hybrid catalysts could be easily recycled and reused up to seven times with essentially unchanged stereoselectivity, although diminished activity was observed upon extensive reuse, especially under aqueous conditions. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) |
语种 | 英语 |
WOS记录号 | WOS:000262739700016 |
出版者 | WILEY-V C H VERLAG GMBH |
源URL | [http://ir.iccas.ac.cn/handle/121111/66753] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Luo, Sanzhong |
作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Ctr Chem Biol, Inst Chem, Beijing 100190, Peoples R China 2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China 3.Nankai Univ, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Jiuyuan,Hu, Shenshen,Luo, Sanzhong,et al. Chiral Amine-Polyoxometalate Hybrids as Recoverable Asymmetric Enamine Catalysts under Neat and Aqueous Conditions[J]. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY,2009(1):132-140. |
APA | Li, Jiuyuan,Hu, Shenshen,Luo, Sanzhong,&Cheng, Jin-Pei.(2009).Chiral Amine-Polyoxometalate Hybrids as Recoverable Asymmetric Enamine Catalysts under Neat and Aqueous Conditions.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY(1),132-140. |
MLA | Li, Jiuyuan,et al."Chiral Amine-Polyoxometalate Hybrids as Recoverable Asymmetric Enamine Catalysts under Neat and Aqueous Conditions".EUROPEAN JOURNAL OF ORGANIC CHEMISTRY .1(2009):132-140. |
入库方式: OAI收割
来源:化学研究所
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