{η5-(3-SiMe3)C5H3C[(CH2)5]-3,5-Me2C6H3}TiCl3 | 892550-56-0

• 英文名称: {η5-(3-SiMe3)C5H3C[(CH2)5]-3,5-Me2C6H3}TiCl3
• 英文别名: 3-[1-(3,5-dimethylphenyl)cyclohexyl]-trimethylsilylcyclopentadienyl titanium trichloride
• CAS: 892550-56-0
• 化学式: C₂₂H₃₁Cl₃SiTi
• 分子量: 477.813
• InChiKey: DCYKQXUTWYGQMW-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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

• 作为反应物：
  描述：

  三乙醇胺 、 {η5-(3-SiMe3)C5H3C[(CH2)5]-3,5-Me2C6H3}TiCl3 在 三乙胺 作用下， 以 甲苯 为溶剂， 反应 12.0h， 以60%的产率得到{η5-(3-SiMe3)C5H3C[(CH2)5]-3,5-Me2C6H3}Ti(TEA)
  参考文献：
  名称：

  用环戊二烯基芳烃二氧化钛催化剂选择性乙烯三聚反应

  摘要：

  研究了由甲基铝氧烷 (MAO) 助催化剂活化的环戊二烯基-芳烃二氧化钛催化剂用于乙烯的三聚反应。将富电子多齿配体引入催化剂的活性位点可提高乙烯三聚反应的生产率和选择性。测试了各种数量的 MAO，并将其引入系统的方法各不相同。已经表明，催化剂与 MAO 的预烷基化提高了乙烯三聚的产率。还研究了反应温度和压力对 1-己烯生产率和选择性的影响。乙烯转化率大约是乙烯浓度的一级。1-己烯是在温和条件下生产的，可以通过较低温度的反应实现节能。

  DOI：

  10.1007/s11243-012-9607-2
• 作为产物：
  描述：

  cyclopenta-2,4-dien-1-ylidenecyclohexane 、 四氯化钛 、 3,5-dimethylphenyllithium 在 正丁基锂 、 三甲基氯硅烷 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 为溶剂， 以23%的产率得到{η5-(3-SiMe3)C5H3C[(CH2)5]-3,5-Me2C6H3}TiCl3
  参考文献：
  名称：

  Selective ethylene trimerization: A study into the mechanism and the reduction of PE formation

  摘要：

  In the present study, the titanium-catalyzed ethylene trimerization in general, and more specifically, the concomitant PE formation have been studied. The polymer formation is undesirable as it not only will lead to lower I-hexene yields, but it can cause reactor fouling under the applied conditions (30-80 degrees C, toluene solvent). It is, therefore, important to know which factors are involved in the formation of polymeric products and how their formation can be reduced or even prevented. The PE formation turns out to be catalyzed by at least two different species. A significant amount of PE is formed in the early stages of the reaction, caused by the presence of partly alkylated titanium species. The PE formation during later stages of the reaction is due to degraded catalyst species, which means that polymer formation is an inherent property of this catalyst system. The polymer output can be reduced largely by premixing Cp'TiCl3 and methyl aluminoxane (MAO) prior to injection into the reactor. It was also demonstrated that the type of MAO activator/impurity scavenger is of great importance. For a low yield of PE it is essential to use an MAO that does not contain and/or is not able to generate aluminum hydride species. In the end the best results with respect to both productivity and selectivity were obtained by starting from trimethyl titanium compounds. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2005.12.030