Highly active hydrogenation catalysts from titanocenes and sodium hydride of nanometric size | |
Fan, YH; Liao, SJ; Xu, J; Qian, YL; Huang, JL | |
刊名 | chemical journal of chinese universities-chinese
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1997-10-01 | |
卷号 | 18期号:10页码:1683-1687 |
关键词 | titanocenes nanometric sodium hydride catalytic hydrogenation olefins |
英文摘要 | the hydrogenation of 1-hexene was catalyzed by titanocene with various substituted groups in combination with nanometric sodium hydride. when the steric hindrance of the substituted group on the cyclopentadienyl ring is relatively small, the titanium complex gives high initial catalytic activity but poor stability, whereas when the steric hindrance is large(for instance, five-memhered ring or six-memhered ring), the titanium complex gives lower initial catalytic acitivty but better stabilty, at normal temperature and pressure, a maximum turnover frequency (tofmax) of 110 mol h-2/(mol ti . s) and a turnover (to) of 22,200 mol h-2/(mol ti) were obtained by using bis[(1'-ethyl)cyclohexyl-cyclopentadienyl] ticl2/nah* as catalyst. only the terminal olefin could be hydrogenated by using this kind of catalytic system, isomerization of olefins did not occur in the course of hydrogenation, it is the key factor that the nanometric nah* was used as the cocatalyst in the reaction, the combination of titanocenes with commercial sodium hydride which was synthesized at high temperatures did not display any catalytic activity for the hydrogenation of 1-hexene. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, multidisciplinary |
研究领域[WOS] | chemistry |
关键词[WOS] | alkali-metal hydrides ; titanium complexes |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:A1997YC46500027 |
公开日期 | 2015-11-17 |
内容类型 | 期刊论文 |
源URL | [http://159.226.238.44/handle/321008/142796] ![]() |
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 | 1.CHINESE ACAD SCI, DALIAN INST CHEM PHYS, DALIAN 116023, PEOPLES R CHINA 2.LIAONING NORMAL UNIV, DEPT CHEM, DALIAN 116029, PEOPLES R CHINA 3.E CHINA UNIV SCI & TECHNOL, INST APPL CHEM, SHANGHAI 200237, PEOPLES R CHINA |
推荐引用方式 GB/T 7714 | Fan, YH,Liao, SJ,Xu, J,et al. Highly active hydrogenation catalysts from titanocenes and sodium hydride of nanometric size[J]. chemical journal of chinese universities-chinese,1997,18(10):1683-1687. |
APA | Fan, YH,Liao, SJ,Xu, J,Qian, YL,&Huang, JL.(1997).Highly active hydrogenation catalysts from titanocenes and sodium hydride of nanometric size.chemical journal of chinese universities-chinese,18(10),1683-1687. |
MLA | Fan, YH,et al."Highly active hydrogenation catalysts from titanocenes and sodium hydride of nanometric size".chemical journal of chinese universities-chinese 18.10(1997):1683-1687. |
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