2,3-diphenyltetrasilane | 154587-84-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,3-diphenyltetrasilane
• 英文别名: 2,3-Diphenyltetrasilan
• CAS: 154587-84-5
• 化学式: C₁₂H₁₈Si₄
• 分子量: 274.617
• InChiKey: VQYGWGYWWZWRJQ-UHFFFAOYSA-N

物化性质

• 沸点：
  312.3±25.0 °C(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.94
• 重原子数：
  16.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  盐酸 、 2,3-diphenyltetrasilane 以 neat (no solvent) 为溶剂， 以65%的产率得到2,3-dichlorotetrasilane
  参考文献：
  名称：

  Lineare tetrasilane mit mittelständigen substituenten—oligosilane mit optischer Aktivität

  摘要：

  The chiral tetrasilane 2,3-diphenyltetrasilane (2) is formed by the stepwise cleavage of Si-aryl bonds in appropriate aryltetrasilanes with HCl under pressure and subsequent reduction with LiAlH4. HPh2SiSiPh2SiPh2SiPh2H affords a mixture of conformers, whereas MeS2HSiSiPh2SiPh2SiHMeS2, which is accessible from MeS2HSiLi and Ph2SiCl2, only yields 2 because mesityl groups proved to be much more reactive towards HCl than towards phenyl groups. Further reaction of 2 with HCl or HBr affords 2,3-dichlorotetrasilane (7) and 2,3-dibromotetrasilane (8). The diastereomers that appear because of the presence of 2 asymmetric Si atoms in 2, 7 and 8, can be easily distinguished in NMR and GC/MS experiments.

  DOI：

  10.1016/0022-328x(93)80450-p
• 作为产物：
  描述：

  在 lithium aluminium tetrahydride 、 氢溴酸 作用下， 以 乙醚 为溶剂， 反应 5.0h， 生成 2,3-diphenyltetrasilane
  参考文献：
  名称：

  Lineare tetrasilane mit mittelständigen substituenten—oligosilane mit optischer Aktivität

  摘要：

  The chiral tetrasilane 2,3-diphenyltetrasilane (2) is formed by the stepwise cleavage of Si-aryl bonds in appropriate aryltetrasilanes with HCl under pressure and subsequent reduction with LiAlH4. HPh2SiSiPh2SiPh2SiPh2H affords a mixture of conformers, whereas MeS2HSiSiPh2SiPh2SiHMeS2, which is accessible from MeS2HSiLi and Ph2SiCl2, only yields 2 because mesityl groups proved to be much more reactive towards HCl than towards phenyl groups. Further reaction of 2 with HCl or HBr affords 2,3-dichlorotetrasilane (7) and 2,3-dibromotetrasilane (8). The diastereomers that appear because of the presence of 2 asymmetric Si atoms in 2, 7 and 8, can be easily distinguished in NMR and GC/MS experiments.

  DOI：

  10.1016/0022-328x(93)80450-p