dimethylsilyl(2,3,4,5-tetramethylcyclopentadienyl)(3-tert-butyl-5-methyl-2-phenoxy)-titanium 1,4-diphenylbutadiene | 957121-96-9

• 英文名称: dimethylsilyl(2,3,4,5-tetramethylcyclopentadienyl)(3-tert-butyl-5-methyl-2-phenoxy)-titanium 1,4-diphenylbutadiene
• CAS: 957121-96-9
• 化学式: C₃₈H₄₆OSiTi
• 分子量: 594.748
• InChiKey: DPBOOSDCVLKRNV-SKGIIGQASA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  dimethylsilyl(2,3,4,5-tetramethylcyclopentadienyl)(3-tert-butyl-5-methyl-2-phenoxy)-titanium dichloride 、 1,4-二苯基-1,3丁二烯 在 正丁基锂 作用下， 以 正己烷 为溶剂， 以73%的产率得到dimethylsilyl(2,3,4,5-tetramethylcyclopentadienyl)(3-tert-butyl-5-methyl-2-phenoxy)-titanium 1,4-diphenylbutadiene
  参考文献：
  名称：

  EP2138503

  摘要：

  公开号：

文献信息

• Synthesis and characterization of titanium alkyl, oxo, and diene complexes bearing a SiMe2-bridged phenoxy-cyclopentadienyl ligand and their catalytic performance for copolymerization of ethylene and 1-hexene
  作者：Hidenori Hanaoka、Takahiro Hino、Masaaki Nabika、Tetsuya Kohno、Kazunori Yanagi、Yoshiaki Oda、Akio Imai、Kazushi Mashima

  DOI：10.1016/j.jorganchem.2007.06.012

  日期：2007.10

  A series of titanium complexes bearing a SiMe2-bridged phenoxy-cyclopentadienyl ligand were synthesized and characterized, and their catalytic behavior for copolymerization of ethylene and 1-hexene was investigated. Treatment of dimethylsilyl(2,3,4,5-tetramethylcyclopentadienyl)(3-tert-butyl-5-methyl-2-phenoxy)-titanium dichloride (1) with appropriate nucleophiles afforded dimethoxy complex 2, dimethyl complex 3, and dibenzyl complex 4. Standing a toluene solution of 2 in air afforded a dinuclear mu-oxo complex 5 as a single isomer. 1,3-Diene complexes 6-8 were prepared by reaction of 1 with the corresponding 1,3-dienes in the presence of 2 equiv. of n-BuLi. X-ray analysis of 1,4-diphenyl-1,3-butadiene complex 6 revealed that the diene ligand coordinates to titanium in s-cis fashion with a prone orientation. The newly prepared titanium complexes were applied to copolymerization of ethylene and 1-hexene upon activation with (AlBu3)-Bu-i and [C6H5NMe2H][B(C6F5)4]. It was found that the alkyl complexes 3-4 and the diene complexes 6-8 showed higher activities than 1 at elevated temperature. (C) 2007 Elsevier B.V. All rights reserved.