(pentamethylcyclopentadienyl)(η(3)-2-methylpropenyl)[(trimethylsilyl)methyl]bromoosmium(IV) | 243143-49-9

• 英文名称: (pentamethylcyclopentadienyl)(η(3)-2-methylpropenyl)[(trimethylsilyl)methyl]bromoosmium(IV)
• CAS: 243143-49-9
• 化学式: C₁₈H₃₃BrOsSi
• 分子量: 547.65
• InChiKey: QTYBQGHYOUBOAK-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：

  (pentamethylcyclopentadienyl)(η(3)-2-methylpropenyl)dibromoosmium(IV) 、 trimethylsilylmethyllithium 以 乙醚 、 正己烷 为溶剂， 以62%的产率得到(pentamethylcyclopentadienyl)(η(3)-2-methylpropenyl)[(trimethylsilyl)methyl]bromoosmium(IV)
  参考文献：
  名称：

  Synthesis of Hydride and Alkyl Compounds Containing the Cp*Os(η³-allyl) Fragment. Crystal Structures of Cp*Os(η³-C₈H₁₃)Br₂ and [Cp*Os(η³-C₄H₇)Me(H₂O)][BF₄]

  摘要：

  Treatment of Gp*(2)Os(2)B(r)4 with 3-bromo-2-methylpropene or 1,3-cycloactadiene affords the 2-methylpropenyl and cyclooctenyl products Cp*Os(eta(3)-C4H7)Br-2 and Cp*Os(eta(3)-C8H13)Br-2, respectively. The monoalkyl complexes Cp*Os(eta(3)-C4H7)MeBr and Cp*Os(eta(3)-C4H7)(CH2SiMe3)-Br can be generated by treating Cp*Os(eta(3)-C4H7)Br-2 with MgMe2 or LiCE2SiMe3. The dimethyl complex Cp*Os(eta(3)-C4H7)Me-2 can be synthesized from CP*Os(eta(3)-C(4)H7())Br(2) by addition of methyllithium. In contrast, addition of ethyllithium to Cp*Os(eta(3)-C4H7)Br-2 yields the ethylene complex Cp*Os(eta(3)-C4H7)(eta(2)-C2H4) and a small amount of Cp*Os(eta(3)-C4H7)H-2. The latter dihydride can be synthesized in better yield by treating CP*Os(eta(3)-C4H7)Br-2 With LiAlH4. When the dimethyl complex Cp*Os(eta(3)-C4H7)Me-2 is protonated with HBF4 in the presence of H2O, the aqua complex [Cp*Os(eta(3)-C4H7)Me(H2O)][BF4] is formed.

  DOI：

  10.1021/om990150m