[methylene(η5-indenyl)(η5-1,3-dimethylcyclopentadienyl)]bis[chlorobis(dimethylamido)titanium] | 728945-81-1

• 英文名称: [methylene(η5-indenyl)(η5-1,3-dimethylcyclopentadienyl)]bis[chlorobis(dimethylamido)titanium]
• CAS: 728945-81-1
• 化学式: C₂₅H₄₀Cl₂N₄Ti₂
• 分子量: 563.285
• InChiKey: DEULSJBTVVGKSR-UHFFFAOYSA-L

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：

  bis(dimethylamido)titanium(IV) dichloride 、 2-(indenylmethyl)-1,3-dimethylcyclopentadiene dilithium salt 以 甲苯 为溶剂， 以22%的产率得到[methylene(η5-indenyl)(η5-1,3-dimethylcyclopentadienyl)]bis[chlorobis(dimethylamido)titanium]
  参考文献：
  名称：

  Syntheses, characterizations, and olefin polymerizations of methylene-bridged 1,3-dimethylcyclopentadienyl/indenyl and 1,3-dimethylcyclopentadienyl/tetrahydroindenyl zirconium complexes

  摘要：

  A cyclopentadiene compound having methyl substituents on 1,3-positions, l,3-Me-2-2-CH2(OTHP)-C5H3 (3) is prepared from 2-bromo-3-methyl-2-cyclopenten-1-one ethylene ketal (1) in 48% overall yield. Addition of 2.5 equivalents of indenyllithium to 3 affords a methylene bridged 1,3-dimethylcyclopentadienyl indenyl compound, CH2(1,3-Me2C5H3)(C9H7) (5) in 72% yield. Reaction of dilithium salt of 5 with ZrCl2(NMe2)(2) (DME) furnishes an ansa-zirconocene complex [CH2(1,3-Me2C5H2)(C9H6)]Zr(NMe2)(2) (6), which is transformed cleanly to the dichloride complex, [CH2(1,3-Me2C5H2)(C9H6)]ZrCl2 (7), by treatment of Me3SiCl. Hydrogenation of 7 over PtO2 gives a tetrahydroindenyl complex [CH2(1,3-Me2C5H2)(C9H10)]ZrCl2 (8). Reaction of the dilithium salt of 5 with Ti(NMe2)(2)Cl-2 does not provide the desired ansa-titanocene complex, but a dinuclear complex [(1,3-MeC5H2)Ti(NMe2)(2)Cl]-CH2-[(C9H6)Ti(NMe2)(2)Cl-2 (9) is obtained. The solid structures of 6 and 9 were determined by X-ray crystallography. The ethylene and ethylene/norbornene (co)polymerizations were studied with 7/MAO and 8/MAO. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2004.01.017