1,9-dichloro-1,3,3,5,5,7,7,9-octamethyl-1,9-divinylpentasiloxane | 180347-43-7

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 1,9-dichloro-1,3,3,5,5,7,7,9-octamethyl-1,9-divinylpentasiloxane
• 英文别名: bis[[(chloro-ethenyl-methylsilyl)oxy-dimethylsilyl]oxy]-dimethylsilane
• CAS: 180347-43-7
• 化学式: C₁₂H₃₀Cl₂O₄Si₅
• 分子量: 449.701
• InChiKey: VLWLXKQOXHZGAD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.23
• 重原子数：
  23.0
• 可旋转键数：
  10.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  二[(羟基-二甲基硅烷基)氧基]-二甲基硅烷 、 1,9-dichloro-1,3,3,5,5,7,7,9-octamethyl-1,9-divinylpentasiloxane 在 吡啶 作用下， 以 乙醚 为溶剂， 反应 48.0h， 以31%的产率得到2,2,4,4,6,6,8,10,10,12,12,14,14,16-Tetradecamethyl-8,16-divinyl-1,3,5,7,9,11,13,15-octaoxa-2,4,6,8,10,12,14,16-octasila-cyclohexadecane
  参考文献：
  名称：

  Synthesis of organosiloxanes with reactive groups at silicon atoms

  摘要：

  The heterofunctional condensation of (dihydroxy)organodisiloxanes and -trisiloxanes with vinyl(hydro)organodichlorosilanes was studied with the purpose of preparing alpha,omega-dichloroorganosiloxanes with reactive Si-H and Si-CH=CH2 groups. During the isolation, 1,9-dichloro-1,9-dihydropentamethyloctasiloxane disproportionates with the elimination of (dichloro)methylsilane to form heptamethylcyclotetrasiloxane. A series of cyclotetra-, cyclohexa-, and cyclooctasiloxanes with Si-H and Si-CH=CH2 groups was obtained by the condensation of alpha,omega-dihydroxyorganosiloxanes with alpha,omega-(dichloro)divinyl(dihydro)organosiloxanes.

  DOI：

  10.1007/bf01431324
• 作为产物：
  描述：

  甲基乙烯基二氯硅烷 、 二[(羟基-二甲基硅烷基)氧基]-二甲基硅烷 在 苯胺 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以62%的产率得到1,9-dichloro-1,3,3,5,5,7,7,9-octamethyl-1,9-divinylpentasiloxane
  参考文献：
  名称：

  Synthesis of organosiloxanes with reactive groups at silicon atoms

  摘要：

  The heterofunctional condensation of (dihydroxy)organodisiloxanes and -trisiloxanes with vinyl(hydro)organodichlorosilanes was studied with the purpose of preparing alpha,omega-dichloroorganosiloxanes with reactive Si-H and Si-CH=CH2 groups. During the isolation, 1,9-dichloro-1,9-dihydropentamethyloctasiloxane disproportionates with the elimination of (dichloro)methylsilane to form heptamethylcyclotetrasiloxane. A series of cyclotetra-, cyclohexa-, and cyclooctasiloxanes with Si-H and Si-CH=CH2 groups was obtained by the condensation of alpha,omega-dihydroxyorganosiloxanes with alpha,omega-(dichloro)divinyl(dihydro)organosiloxanes.

  DOI：

  10.1007/bf01431324