9-cyclooct-4c-enyl-9-bora-bicyclo[3.3.1]nonane | 22516-40-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 金属杂环化合物
• 英文名称: 9-cyclooct-4c-enyl-9-bora-bicyclo[3.3.1]nonane
• 英文别名: 9-Cyclooctenyl-(1)-9-bora-bicyclo<3.3.1>nonan
• CAS: 22516-40-1
• 化学式: C₁₆H₂₇B
• 分子量: 230.201
• InChiKey: NWIJQVGOZBSOID-LYZYQQHPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.48
• 重原子数：
  17.0
• 可旋转键数：
  1.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  1,5-cis,cis-cyclooctadiene 在 硼烷四氢呋喃络合物 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 生成 9-cyclooct-4c-enyl-9-bora-bicyclo[3.3.1]nonane
  参考文献：
  名称：

  Controlled Synthesis of High Molecular Weight Telechelic Polybutadienes by Ring-Opening Metathesis Polymerization

  摘要：

  High molecular weight telechelic [dicyano- and dichloro-] polybutadienes (TPBs) have been synthesized via ring-opening metathesis (ROM) polymerization of 1,5-cyclooctadiene (COD) in the presence of the difunctional chain transfer agents (CTAs), 1,4-dicyano- or 1,4-dichloro-2-butene. To achieve high molecular weights, it was critical that the COD monomer contained very low levels of the contaminating, isomeric 4-vinylcyclohexene (VCH), since the latter serves as a competing CTA. An NMR method for determining the level of VCH was developed as well as "reactive purification" strategy in which the VCH was selectively depleted by its (faster) hydroboration. A "two-stage" protocol for preparation of the TPBs was developed wherein a small portion of the eventual charge of COD and the entire quantity of the CTA were first copolymerized to produce telechelic oligomeric butadiene (TOB) of low viscosity. After all of the CTA had been consumed, the remaining COD was charged. This protocol allowed for better MW control and for higher functionality in the resulting TPBs. Finally, diamino-terminated TPBs were prepared by lithium aluminum hydride reduction of the precursor dicyano-TPBs.

  DOI：

  10.1021/ma0493067

文献信息

• Koester,R. et al., Justus Liebigs Annalen der Chemie, 1968, vol. 720, p. 32 - 57
  作者：Koester,R. et al.

  DOI：——

  日期：——