E,E,E,E-2,5-bis<2-<5-<2-(2-thienyl)ethenyl>-2-thienyl>ethenyl>thiophene | 26231-79-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: E,E,E,E-2,5-bis<2-<5-<2-(2-thienyl)ethenyl>-2-thienyl>ethenyl>thiophene
• 英文别名: E,E,E,E-2,5-bis[2-{5-[2-(2-thienyl)ethenyl]-2-thienyl}ethenyl]thiophene；2,5-bis[(E)-2-[5-[(E)-2-thiophen-2-ylethenyl]thiophen-2-yl]ethenyl]thiophene
• CAS: 26231-79-8
• 化学式: C₂₈H₂₀S₅
• 分子量: 516.797
• InChiKey: UUOFIKNBSWAYIJ-YIERLYCCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.7
• 重原子数：
  33
• 可旋转键数：
  8
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  141
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-(噻吩甲基)膦酸二乙酯 在 四氯化钛 、 sodium hydride 、 锌 、 三氯氧磷 作用下， 以 四氢呋喃 、 乙二醇二甲醚 为溶剂， 反应 21.5h， 生成 E,E,E,E-2,5-bis<2-<5-<2-(2-thienyl)ethenyl>-2-thienyl>ethenyl>thiophene
  参考文献：
  名称：

  Preparation of a Series of Oligo[thiophene-2,5-diyl]vinylenes

  摘要：

  Preparation of a series of oligo[thiophene-2,5-diyl]vinylenes (3) is reported. Compounds containing an even number of thiophene rings were synthesized by the carbonyl coupling of thiophenecarbaldehydes with a low-valent titanium reagent and those carrying an odd number of thiophene rings by the coupling of thiophenecarbaldehydes with Wittig-Horner (Wittig) reagents. Uv-vis spectral feature of these compounds is also reported.

  DOI：

  10.3987/com-91-5719

文献信息

• Preparation of a Series of Oligo[thiophene-2,5-diyl]vinylenes
  作者：Juzo Nakayama、Toru Fujimori

  DOI：10.3987/com-91-5719

  日期：——

  Preparation of a series of oligo[thiophene-2,5-diyl]vinylenes (3) is reported. Compounds containing an even number of thiophene rings were synthesized by the carbonyl coupling of thiophenecarbaldehydes with a low-valent titanium reagent and those carrying an odd number of thiophene rings by the coupling of thiophenecarbaldehydes with Wittig-Horner (Wittig) reagents. Uv-vis spectral feature of these compounds is also reported.