N,N'-(1,4-phenylene)bis(1-(4-((7-bromoheptyl)oxy)phenyl)methanimine) | 1233235-73-8

• 英文名称: N,N'-(1,4-phenylene)bis(1-(4-((7-bromoheptyl)oxy)phenyl)methanimine)
• CAS: 1233235-73-8
• 化学式: C₃₄H₄₂Br₂N₂O₂
• 分子量: 670.528
• InChiKey: WJVAXAMWIFZJDM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.64
• 重原子数：
  40.0
• 可旋转键数：
  20.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  43.18
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  N,N'-(1,4-phenylene)bis(1-(4-((7-bromoheptyl)oxy)phenyl)methanimine) 、 (S)-2-methylbutyl 4'-hydroxybiphenyl-4-carboxylate 在 potassium carbonate 、 potassium iodide 作用下， 以 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 18.0h， 以56%的产率得到
  参考文献：
  名称：

  Chirality-Induced Liquid Crystalline Properties of Seven-Ring Trimeric Mesogens Incorporating Dual Chiral Centers

  摘要：

  Two series of novel trimers with benzylidene-1,4-phenylenediamine core units attached by two (S)-2-methylbutyl 4-(4'-phenyl)benzoate moieties via methylene groups at terminal ends have been synthesized and characterized. In each series, the title compounds differ from each other in term of spacers -OCnH2nO- wherein n ranges from 5 to 12. The difference of the second series from their analogues in the first series is due to the presence of two OCH3 groups residing at the meta position in the benzylidene-1,4-phenylenediamine mesogenic core. The trimers without lateral OCH3 groups exhibit the SmC* and SmA phases in addition to the N* phase suggesting the possession of high molecular shape anisotropy. The higher-order tilted smectic phases and the blue phase are also observed for the members with odd n numbers in the first series. In the second series, however, the smectogenic characteristics are absent. Whilst the even-parity trimers are nematogenic, the trimers with odd spacers are not mesogenic. The trimers without lateral OCH3 groups in the first series also exhibit higher mesophase thermal stability in comparison with their analogues in the second series.

  DOI：

  10.1080/15421400902841353
• 作为产物：
  描述：

  对苯二胺 在 potassium carbonate 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 18.0h， 生成 N,N'-(1,4-phenylene)bis(1-(4-((7-bromoheptyl)oxy)phenyl)methanimine)
  参考文献：
  名称：

  Chirality-Induced Liquid Crystalline Properties of Seven-Ring Trimeric Mesogens Incorporating Dual Chiral Centers

  摘要：

  Two series of novel trimers with benzylidene-1,4-phenylenediamine core units attached by two (S)-2-methylbutyl 4-(4'-phenyl)benzoate moieties via methylene groups at terminal ends have been synthesized and characterized. In each series, the title compounds differ from each other in term of spacers -OCnH2nO- wherein n ranges from 5 to 12. The difference of the second series from their analogues in the first series is due to the presence of two OCH3 groups residing at the meta position in the benzylidene-1,4-phenylenediamine mesogenic core. The trimers without lateral OCH3 groups exhibit the SmC* and SmA phases in addition to the N* phase suggesting the possession of high molecular shape anisotropy. The higher-order tilted smectic phases and the blue phase are also observed for the members with odd n numbers in the first series. In the second series, however, the smectogenic characteristics are absent. Whilst the even-parity trimers are nematogenic, the trimers with odd spacers are not mesogenic. The trimers without lateral OCH3 groups in the first series also exhibit higher mesophase thermal stability in comparison with their analogues in the second series.

  DOI：

  10.1080/15421400902841353