New soluble bifunctional polymeric chiral ligands for enantioselectively catalytic reactions
文献类型：期刊论文
| 作者 | Fan, QH; Liu, GH; Deng, GJ; Chen, XM; Chan, ASC |
| 刊名 | TETRAHEDRON LETTERS
 |
| 出版日期 | 2001-12-17 |
| 卷号 | 42期号:51页码:9047-9050 |
| 关键词 | Bifunctional Catalyst Soluble Polymeric Ligand Asymmetric Catalysis Binap Binol |
| ISSN号 | 0040-4039 |
| 英文摘要 | Two new soluble bifunctional polymeric ligands (R,R)-4 and (R,R)-5 have been prepared via the direct condensation reaction of (R)-3.3'-diformyl-1.1'-bi-2-naphthol (R)-1 with (R)-5.5'-diamino BINAP (R)-2 and with (R)-5.5'-diamino BINAPO (R)-3, respectively. The different types of catalytic centers, BINOL and BINAP or BINAPO, were alternatively organized in a regular chiral polymer chain. Both polymeric ligands were found to be effective in the addition of diethylzinc to benzaldehyde either in the presence or in the absence of Ti(OPr')(4) with different enantioselectivities. (R.R)-4,Ti(IV) catalyst. which showed similar efficiency to the parent catalyst BINOL,Ti(IV). was more enantioselective than (R.R)-5,Ti(IV), (R,R)-4 was also found to be highly effective in the RU(II)-catalyzed asymmetric hydrogenation of 2-arylacrylic acids. The results demonstrated that the use of the co-polymer catalyst rather than a Mixture of monomer catalysts not only simplified the recycling of the catalyst, but also improved the enantioselectivity and/or the activity in some cases. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000172530600032 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76643]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fan, QH |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, LMRSS, Ctr Mol Sci, Beijing 100080, Peoples R China 2.Hong Kong Polytech Univ, Open Lab Chirotechnol, Hong Kong, Hong Kong, Peoples R China 3.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, QH,Liu, GH,Deng, GJ,et al. New soluble bifunctional polymeric chiral ligands for enantioselectively catalytic reactions[J]. TETRAHEDRON LETTERS,2001,42(51):9047-9050. |
| APA | Fan, QH,Liu, GH,Deng, GJ,Chen, XM,&Chan, ASC.(2001).New soluble bifunctional polymeric chiral ligands for enantioselectively catalytic reactions.TETRAHEDRON LETTERS,42(51),9047-9050. |
| MLA | Fan, QH,et al."New soluble bifunctional polymeric chiral ligands for enantioselectively catalytic reactions".TETRAHEDRON LETTERS 42.51(2001):9047-9050. |
入库方式： OAI收割
来源：化学研究所
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