Study on the role of trifluoromethanesulfonate ion in asymmetric cyclopropanation of styrene by in situ. Variable temperature F-19 NMR
文献类型：期刊论文
| 作者 | Li, C; Zhang, WP; Liu, XM; Yao, XQ; Lu, SW; Han, XW; Bao, XH |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2001-03-01 |
| 卷号 | 22期号:2页码:154-156 |
| 关键词 | in situ variable temperature F-19 NMR weakly coordinating anion trifluoromethanesulfonate ion styrene cyclopropanation |
| 英文摘要 | the role of trifluoromethanesulfonate ion (otf-) in asymmetric cyclopropanation of styrene catalyzed by ruthenium complex of chiral n, p ligand is investigated by in situ variable temperature f-19 nmr. the temperature of nmr experiment varies from 243 k to 283 k. after ethyl diazoacetate and styrene are added into the catalytic system, the process that the otf- leaves from the central metal is observed from the change of the f-19 nmr spectra. owing to the weakly coordinating behavior, trifluoromethanesulfonate ion can be easily removed from the central metal and replaced by substrates to form the reactive intermediate during the reaction. so that the catalytic reactivity can be improved greatly when the silver trifluoromethanesulfonate is added to the catalytic system. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | complexes ; catalysts ; ketones ; anions ; ligand |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000170359000014 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/138946]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, C,Zhang, WP,Liu, XM,et al. Study on the role of trifluoromethanesulfonate ion in asymmetric cyclopropanation of styrene by in situ. Variable temperature F-19 NMR[J]. chinese journal of catalysis,2001,22(2):154-156. |
| APA | Li, C.,Zhang, WP.,Liu, XM.,Yao, XQ.,Lu, SW.,...&Bao, XH.(2001).Study on the role of trifluoromethanesulfonate ion in asymmetric cyclopropanation of styrene by in situ. Variable temperature F-19 NMR.chinese journal of catalysis,22(2),154-156. |
| MLA | Li, C,et al."Study on the role of trifluoromethanesulfonate ion in asymmetric cyclopropanation of styrene by in situ. Variable temperature F-19 NMR".chinese journal of catalysis 22.2(2001):154-156. |
入库方式： OAI收割
来源：大连化学物理研究所
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