[Ti(η5-C5Me4SiMe3)Me3] | 153539-88-9

• 英文名称: [Ti(η5-C5Me4SiMe3)Me3]
• 英文别名: Ti(η5-C5Me4SiMe3)Me3
• CAS: 153539-88-9
• 化学式: C₁₅H₃₀SiTi
• 分子量: 286.369
• InChiKey: IMQBZYLCDGPGMH-UHFFFAOYSA-N

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 、 甲基氯化镁 以 四氢呋喃 、 乙醚 为溶剂， 以64%的产率得到[Ti(η5-C5Me4SiMe3)Me3]
  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

文献信息

• Hydro- and chloro-substituted silyl- and silyl-η1-amido-η5-tetramethylcyclopentadienyl titanium complexes
  作者：Ana Belén Vázquez、Pascual Royo、Eberhardt Herdtweck

  DOI：10.1016/s0022-328x(03)00559-x

  日期：2003.10

  Chlorosilyl-cyclopentadienyl titanium precursors [Ti(η5-C5Me4SiMeXCl)Cl3] (X=H 2, Cl 3) were prepared by reaction of TiCl4 with the trimethylsilyl derivatives of the corresponding cyclopentadienes. Methylation of these compounds with MgClMe under appropriate conditions afforded the methyl complexes [Ti(η5-C5Me4SiMe2R)XMe2] (R=H, X=Cl 5, Me 6; R=X=Me 7). Reactions of 2 and 3 with two equivalents of

  氯甲硅烷基环戊二烯钛前体钛[Ti（η 5 -C 5我4 SiMeXCl）氯3 ]（X = H 2，氯3）通过的TiCl反应制备4与相应的环戊二烯的三甲基甲硅烷衍生物。得到甲基络合物的这些化合物与MgClMe适当条件下的甲基化钛[Ti（η 5 -C 5我4森达2 R）XME 2 ]（R = H，X =氯5中，Me 6 ; R = X =我7） 。的反应2和3与灵两个当量吨卜得到柄-甲硅烷-η-酰胺化合物钛[Ti η 5 -C 5我4 SIMEX（η 1 -N吨丁基）}氯2 ]（X = H 8，氯9）。的甲基化8，得到钛[Ti η 5 -C 5我4 SiMeH（η 1 -N吨丁基）}我2 ] 10。配合物8也可以通过8与BCl 3的反应获得，而相同的反应是使用氯化剂（TiCl 4，盐酸盐）导致脱酰胺，得到2，将其也被转换成3与Bcl由反应3。所有这些新化合物都通过NMR光谱进行了表征，并通过X射线衍射法确定了2和4的分子结构。