bis(N-(3-t-butylsalicylidene)-3',5'-bis(trifluoromethyl)anilinato)titanium(IV)dichloride | 264226-59-7

• 英文名称: bis(N-(3-t-butylsalicylidene)-3',5'-bis(trifluoromethyl)anilinato)titanium(IV)dichloride
• CAS: 264226-59-7
• 化学式: C₃₈H₃₂Cl₂F₁₂N₂O₂Ti
• 分子量: 895.451
• InChiKey: DIVFFWMWNZIPGB-BBMDFTKSSA-J

反应信息

• 作为产物：
  描述：

  N-(3-t-butylsalicylidene)-3',5'-bis(trifluoromethyl)aniline 、 四氯化钛 在 正丁基锂 作用下， 以 乙醚 、 正己烷 为溶剂， 以51%的产率得到bis(N-(3-t-butylsalicylidene)-3',5'-bis(trifluoromethyl)anilinato)titanium(IV)dichloride
  参考文献：
  名称：

  Highly active ethylene polymerization catalysts based on titanium complexes having two phenoxy-imine chelate ligands

  摘要：

  Five titanium complexes having F(s) or CF3(S) Containing phenoxy-imine chelate ligands were prepared and investigated for their potential as ethylene polymerization catalysts using methylalumoxane (MAO) as a co-catalyst at 25 degreesC under atmospheric pressure. Polymerization results showed that the electrophilicity of the titanium center plays a dominant role in determining activity. These results clearly demonstrate, for the first time, the electron-withdrawing substituent effects on polymerization activity. The complexes possessing plural F(s) or CF3(S) in the phenoxy-imine ligand displayed very high activities exceeding those for Cp2TiCl2 and Cp2ZrCl2. The activity, 43,300 kg polyethylene (PE) mol-cat(-1) h(-1), exhibited by the complex having three fluorines in the ligand, represents the highest value reported to date for ethylene polymerization catalysts based on titanium complexes under atmospheric pressure at ambient temperatures. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(01)00303-x