2,7-dibromo-9,9-di(4-trimethylsilylethynylbenzyl)fluorene | 330649-67-7

• 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: 2,7-dibromo-9,9-di(4-trimethylsilylethynylbenzyl)fluorene
• CAS: 330649-67-7
• 化学式: C₃₇H₃₆Br₂Si₂
• 分子量: 696.672
• InChiKey: TUPGYQTXSFZDQB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.42
• 重原子数：
  41.0
• 可旋转键数：
  4.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.24
• 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：

  2,7-dibromo-9,9-di(4-trimethylsilylethynylbenzyl)fluorene 在 potassium carbonate 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 3.0h， 以98%的产率得到2,7-dibromo-9,9-di(4-ethynylbenzyl)fluorene
  参考文献：
  名称：

  Polyfluorenes with Polyphenylene Dendron Side Chains:  Toward Non-Aggregating, Light-Emitting Polymers

  摘要：

  A polyfluorene 12 has been prepared in which bulky polyphenylene dendrimer substituents suppress formation of long wavelength emitting aggregates, thus giving a polymer with pure blue emission. Absorption and emission spectra and molecular modeling confirm that the bulky dendrimer side chains do not cause extra torsion between the fluorene units. New polyfluorenes with 9,9-diaryl substituents have been prepared to determine the minimum size of substituent necessary for aggregation suppression. An LED using 12 has been demonstrated to produce blue emission with onset voltages below 4 V.

  DOI：

  10.1021/ja0031220
• 作为产物：
  描述：

  4-碘苄基溴 在 bis-triphenylphosphine-palladium(II) chloride sodium hydroxide 、 copper(l) iodide 、 苄基三甲基氯化铵 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 、 水 、 二甲基亚砜 为溶剂， 反应 98.0h， 生成 2,7-dibromo-9,9-di(4-trimethylsilylethynylbenzyl)fluorene
  参考文献：
  名称：

  Polyfluorenes with Polyphenylene Dendron Side Chains:  Toward Non-Aggregating, Light-Emitting Polymers

  摘要：

  A polyfluorene 12 has been prepared in which bulky polyphenylene dendrimer substituents suppress formation of long wavelength emitting aggregates, thus giving a polymer with pure blue emission. Absorption and emission spectra and molecular modeling confirm that the bulky dendrimer side chains do not cause extra torsion between the fluorene units. New polyfluorenes with 9,9-diaryl substituents have been prepared to determine the minimum size of substituent necessary for aggregation suppression. An LED using 12 has been demonstrated to produce blue emission with onset voltages below 4 V.

  DOI：

  10.1021/ja0031220