2-[2,6-Bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-iodophenyl]ethynyl-tert-butyl-dimethylsilane | 936565-52-5

• 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-[2,6-Bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-iodophenyl]ethynyl-tert-butyl-dimethylsilane
• CAS: 936565-52-5
• 化学式: C₄₈H₅₅IO₂Si
• 分子量: 818.953
• InChiKey: WGLDIONIYGEYEE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  13.78
• 重原子数：
  52
• 可旋转键数：
  13
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-[2,6-Bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-iodophenyl]ethynyl-tert-butyl-dimethylsilane 、 5-[2-[3-[2-[3,5-Bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-(2-phenylethynyl)phenyl]ethynyl]-5-ethynylphenyl]ethynyl]-1,3-bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-2-(2-phenylethynyl)benzene 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 以74%的产率得到2-[4-[2-[3,5-Bis[2-[3,5-bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-(2-phenylethynyl)phenyl]ethynyl]phenyl]ethynyl]-2,6-bis[4-[(4-tert-butylphenyl)methoxy]phenyl]phenyl]ethynyl-tert-butyl-dimethylsilane
  参考文献：
  名称：

  Construction of Snowflake-Shaped Dendritic Covalent Assemblies with Rigid Conjugated Networks

  摘要：

  A convergent method for the construction of shape-persistent nanoscale assemblies with conjugated backbones was developed. The copper-free Sonogashira coupling reaction was successfully applied to the formation of multiple covalent connections between conjugated terminals (iodide substituted aryl groups) of AB(2)-type outer components and four conjugated terminals (acetylenic bonds) of an inner A(4)-type core dendrimer. The conjugated networks in the starting components are expanded during the assembly process to afford nanoscale dendritic conjugated networks of the type A(4)(AB(2))(4), which have a porphyrin core, and longer (3.9 or 4.5 nm) and shorter (1.6 nm) conjugated chains. Fluorescence measurements revealed that singlet energy is effectively transferred in the assemblies from peripheral benzyl ether units and conjugated chains to the free base porphyrin core.

  DOI：

  10.1021/jo3014512
• 作为产物：
  描述：

  4-叔丁基苄溴 在 四(三苯基膦)钯 正丁基锂 、 18-冠醚-6 、 碘 、 sodium carbonate 、 potassium carbonate 、 碘甲烷 作用下， 以 四氢呋喃 、 乙二醇二甲醚 、 正己烷 、 丙酮 为溶剂， 反应 67.17h， 生成 2-[2,6-Bis[4-[(4-tert-butylphenyl)methoxy]phenyl]-4-iodophenyl]ethynyl-tert-butyl-dimethylsilane
  参考文献：
  名称：

  通过树枝状结构增强电子转移：雪花状锌卟啉树枝状聚合物中的能量转移和电子转移。

  摘要：

  [结构：见正文]观察到具有锌卟啉核和蒽醌端基的雪花状树枝状聚合物的光诱导电子转移。树枝状大分子与线性类似物的电子转移效率的比较表明，树枝状结构对于电子转移过程具有优势。

  DOI：

  10.1021/ol070245h

文献信息

• Stepwise construction of a cross-shaped covalent assembly of dendrimers
  作者：Masatoshi Kozaki、Hitoshi Tujimura、Shuichi Suzuki、Keiji Okada

  DOI：10.1016/j.tetlet.2008.03.008

  日期：2008.4

  A methodology for the stepwise construction of shape-persistent assemblies using snowflake-shaped dendrimers as the key modular building blocks was described. The Sonogashira coupling reaction of A(3)B-type Zn-porphyrin with A(4)-type free-base porphyrin afforded a cross-shaped covalent assembly. Intramolecular singlet energy transfer from peripheral Zn-porphyrin core to a free-base porphyrin core was observed. (c) 2008 Elsevier Ltd. All rights reserved.