| 888319-30-0

• CAS: 888319-30-0
• 化学式: C₃₄H₂₂Cl₂F₁₂N₄Ti
• 分子量: 833.342
• InChiKey: YQIAHVMGKSHRQM-JKAGUXMJSA-L

反应信息

• 作为产物：
  描述：

  N-(1,1,1,5,5,5-hexafluoro-4-phenyliminopent-2-en-2-yl)aniline 、 四氯化钛 在 n-butyllithium 作用下， 以 乙醚 、 正己烷 为溶剂， 以61%的产率得到
  参考文献：
  名称：

  Syntheses, structure and ethylene polymerization behavior of β-diiminato titanium complexes

  摘要：

  A series of new titanium complexes bearing beta-diiminato ligands [(Ph)NC(R-1)CHC(R-2)N(Ph)](2)TiCl2 (4a: R-1 = R-2 = CH3; 4b: R-1 = R-2 = CF3; 4c: R-1 = Ph, R-2 = CH3; 4d: R-1 = Ph, R-2 = CF3) has been synthesized and characterized. X-ray crystal structures reveal that complexes 4a and 4c adopt distorted octahedral geometry around the titanium center. With modified methylaluminoxane (MMAO) as a cocatalyst, complexes 4a-d are active catalysts for ethylene polymerization, and produce high molecular weight polyethylenes. Catalyst activities and the molecular weights of polymers are considerably influenced by the steric and electronic effects of substituents on the catalyst backbone under the same polymerization condition. With the strong electron-withdrawing groups (CF3) at R-1 or/and R-2 position, complexes 4b and 4d show higher activities than complexes 4a and 4c, respectively. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2005.12.053