3,3',5,5'-tetra(triisopropylsilylethynyl)tolan | 448895-63-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: 3,3',5,5'-tetra(triisopropylsilylethynyl)tolan
• CAS: 448895-63-4
• 化学式: C₅₈H₉₀Si₄
• 分子量: 899.695
• InChiKey: KNEDOSWMGZUHMK-UHFFFAOYSA-N

物化性质

• 沸点：
  784.0±60.0 °C(Predicted)
• 密度：
  0.94±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  17.36
• 重原子数：
  62.0
• 可旋转键数：
  12.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.62
• 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：

  carbon monoxide,cobalt,cyclopenta-1,3-diene 、 3,3',5,5'-tetra(triisopropylsilylethynyl)tolan 在 tetrabutylammonium fluoride 作用下， 以 癸烷 为溶剂， 以12%的产率得到[tetrakis(3,5-diethynylphenyl)cyclobutadiene]cyclopentadienylcobalt
  参考文献：
  名称：

  Organometallic Dendrimers Based on (Tetraphenylcyclobutadiene)cyclopentadienylcobalt Modules

  摘要：

  The synthesis and characterization of novel organometallic polyphenylene dendrimers containing 24 or 44 phenyl rings and one cyclobutadiene(cyclopentadienyl)cobalt unit is reported. The dendrimers are made by the convergent CPCO(CO)(2)-mediated dimerization of di- or tetraethynyltolanes followed by a divergent core extension utilizing tetraphenylcyclopentadienone. The obtained dendrimers are air and water stable, soluble materials that show interesting differences in their hydrodynamic properties as evidenced by gel permeation chromatography. Scanning pulse voltammetry in solution shows that the dendrimers are oxidized at potentials ranging from 0.8 to 0.83 V. The more sterically encumbered the dendrimer, the higher its oxidation potential, that is, the more difficult oxidation is.

  DOI：

  10.1021/ja026462p
• 作为产物：
  描述：

  1,3-二溴-5-碘苯 在 三苯基膦 哌啶 、 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 作用下， 反应 32.0h， 生成 3,3',5,5'-tetra(triisopropylsilylethynyl)tolan
  参考文献：
  名称：

  Organometallic Dendrimers Based on (Tetraphenylcyclobutadiene)cyclopentadienylcobalt Modules

  摘要：

  The synthesis and characterization of novel organometallic polyphenylene dendrimers containing 24 or 44 phenyl rings and one cyclobutadiene(cyclopentadienyl)cobalt unit is reported. The dendrimers are made by the convergent CPCO(CO)(2)-mediated dimerization of di- or tetraethynyltolanes followed by a divergent core extension utilizing tetraphenylcyclopentadienone. The obtained dendrimers are air and water stable, soluble materials that show interesting differences in their hydrodynamic properties as evidenced by gel permeation chromatography. Scanning pulse voltammetry in solution shows that the dendrimers are oxidized at potentials ranging from 0.8 to 0.83 V. The more sterically encumbered the dendrimer, the higher its oxidation potential, that is, the more difficult oxidation is.

  DOI：

  10.1021/ja026462p