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题名: Highly active hydrogenation catalysts from titanocenes and sodium hydride of nanometric size
作者: Fan, YH;  Liao, SJ;  Xu, J;  Qian, YL;  Huang, JL
关键词: titanocenes ;  nanometric sodium hydride ;  catalytic hydrogenation ;  olefins
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 1997-10-01
卷: 18, 期:10, 页:1683-1687
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
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.
关键词[WOS]: ALKALI-METAL HYDRIDES ;  TITANIUM COMPLEXES
语种: 英语
WOS记录号: WOS:A1997YC46500027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142796
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, 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

Recommended Citation:
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.
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