Ti(η5-C5Me4SiMe2(CH2SiMe3))Cl(CH2SiMe3)2 | 632353-56-1

• 英文名称: Ti(η5-C5Me4SiMe2(CH2SiMe3))Cl(CH2SiMe3)2
• CAS: 632353-56-1
• 化学式: C₂₃H₅₁ClSi₄Ti
• 分子量: 523.333
• InChiKey: QGESPYACQDSKBV-UHFFFAOYSA-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：

  (1-(chlorodimethylsilyl)-2,3,4,5-tetramethylcyclopentadienyl)titanium trichloride 、 (三甲基硅基)甲基氯化镁 以 四氢呋喃 、 乙醚 为溶剂， 以75%的产率得到Ti(η5-C5Me4SiMe2(CH2SiMe3))Cl(CH2SiMe3)2
  参考文献：
  名称：

  Titanium and zirconium chloro, oxo and alkyl derivatives containing silyl-cyclopentadienyl ligands. Synthesis and characterisation

  摘要：

  The reaction of the tetramethylcyclopentadiene-silyl substituted derivative C5Me4(SiMe3)(SiMe2Cl) with MCl4 afforded the trichloro mono-tetramethylcyclopentadienyl complexes M(eta(5)-C5Me4SiMe2Cl)Cl-3 [M = Ti (1), Zr (2)] with selective elimination of SiMe3Cl. Compound 1 reacts with deoxygenated water in methylene chloride, with the evolution of HCl, to give the dinuclear titanium compound {Ti[mu-(eta(5)-C5Me4SiMe2O-kappaO)]Cl-2}(2) (3), which was converted into the mu-oxo complex {Ti[mu-(eta(5)-C5MC4SiMe2O-kappaO)]Cl}(2)(mu-O) (4) by a further hydrolysis reaction which occurred when a solution of 3 in toluene was refluxed for a long period of time in the air. Depending on the size of the alkyl ligand, reactions of the mononuclear compound 1 with an appropriate alkylating reagent rendered the peralkylated Ti(eta(5)-C5Me4SiMe2R)R-3 [R = Me (5), CH2Ph (6)] or partially alkylated {Ti[(eta(5)-C5Me4SiMe2(CH2SiMe3)]Cl(CH2SiMe3)(2)} (7) compounds by a salt metathesis route. Attempts to synthesise a partially methylated or benzylated complex were unsuccessful. Treatment of the dinuclear compound 3 with four equivalents of MgClMe yielded the tetramethyl derivative {Ti[mu-(eta(5)-C5Me4SiMe2O-KO)]Me-2}(2) (8), while the same reaction carried out with MgCl(CH2Ph) or Mg(CH2Ph)(2).2THF gave the chloro-benzyl derivative {Ti[mu-(eta(5)-C5Me4SiMe2O-kappaO)]Cl(CH2Ph)}(2) (9) as an equimolar mixture of diastereomers, regardless of the molar ratio of the alkylating reagent used. All of the new compounds were characterised by elemental analysis and NMR spectroscopy. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(03)00430-3