高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (9): 1441.

• 论文 • 上一篇    下一篇

高活性的茂基钛配合物/正丁基锂加氢催化体系的研究

孙琪2, 廖世健1, 徐筠1, 张一平1, 杨壬午2, 孙仁安2, 陈寿山3   

  1. 1. 中国科学院大连化学物理研究所, 大连, 116023;
    2. 辽宁师范大学化学系;
    3. 南开大学元素有机化学研究所
  • 收稿日期:1995-08-15 出版日期:1996-09-24 发布日期:1996-09-24
  • 通讯作者: 廖世健
  • 作者简介:孙琪,男,32岁,硕士,讲师.
  • 基金资助:

    国家自然科学基金;中国科学院上海有机化学研究所金属有机化学开放实验室基金

A Study of Highly Active Titanocene/n-BuLi Catalyst System in the Hydrogenation of Olefin

SUN Qi2, LIAO Shi-Jian1, XU Yun1, ZHANG Yi-ping1, YANG Ren-Wu2, SUN Ren-An2, CHEN Shou-Shan3   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023;
    2. Department of Chemistry, Liaoning Normal Universityt;
    3. Institute of Elemento-Organic Chemistry, Nankai University
  • Received:1995-08-15 Online:1996-09-24 Published:1996-09-24

PDF (PC)

被引次数

11

摘要： 考察了茂环上不同取代基及钛上阴离子配体对茂基钛配合物/正丁基锂催化体系加氢活性和稳定性的影响。在充分发挥该体系催化活性的条件下,由配合物Cp2TiCl2、Cp2TiF2和Cp2Ti[OC6H3(CH3-2)Cl-4]2组成的催化体系对辛烯-1加氢的最高活性(或初活性)达到46～58s-1.

关键词: 茂基钛配合物, 正丁基锂, 加氢催化剂, 配体的作用

Abstract: The effects of substituted group on the cyclopentadienyl ring and various operating factors including the amount of catalyst, the operating procedure,the solvents, the airand water-free conditions on the catalytic activity and stability of titanocene/n-BuLi catalyst system have been investigated.When there is no substituted group on the cyclopentadienyl ring or the substituted group is relatively small,the titanium complex exhibits a very high initial catalytic activity,e.g., the TOFmax(or TOFinitial)of titanocenes {Cp2TiCl2,Cp2TiF2 or Cp2Ti[OC6H3(CH3-2)Cl-4]2}/n-BuLi system may reach 46～58 s-1 for the hydrogenation of l-octene; whereas when the substituted group is larger,the titanium complex exhibits a lower initial catalytic activity but better stability.

Key words: Titanocene, n-Butyl lithium, Hydrogenation catalyst, Ligand effect

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