2-(4-hexyloxy-phenyl)-5-methyl-benzooxazole | 62725-24-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2-(4-hexyloxy-phenyl)-5-methyl-benzooxazole
• 英文别名: 2-(4-Hexyloxy-phenyl)-5-methyl-benzoxazole；2-(4-hexoxyphenyl)-5-methyl-1,3-benzoxazole
• CAS: 62725-24-0
• 化学式: C₂₀H₂₃NO₂
• 分子量: 309.408
• InChiKey: MWYYBDLWLHPHNC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  23
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  35.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  4-正己氧基苯甲醛 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 乙醇 、 氯仿 为溶剂， 生成 2-(4-hexyloxy-phenyl)-5-methyl-benzooxazole
  参考文献：
  名称：

  New Mesogenic Compounds Containing a Terminal-Substituted Benzoxazole Unit

  摘要：

  A series of novel mesogenic 2-(4-alkoxyphenyl-1-yl)-benzoxazole derivatives bearing different substituents (H, NO2, CH3, Cl, coded as nPB-H, nPB-N, nPB-M, and nPB-C, respectively) at the 5-position were prepared and characterized. nPB-N, nPB-M, and nPB-C exhibited enantiotropic smectic mesophases with the mesophase ranges 3 degrees C-32 degrees C and 3 degrees C-82 degrees C on heating and cooling processes, whereas nPB-H showed no mesophases. The substituents with the stronger electron withdrawing effect let to the wider mesomorphic temperature domain. The nPB-M, nPB-C, and nPB-H displayed intense emission in CH2Cl2 solutions with lambda(max) peaks of the photoluminescence spectra at 350-355nm when excited at their absorption maxima.

  DOI：

  10.1080/15421406.2013.837997

文献信息

• Mesomorphic compound, liquid crystal composition, liquid crystal device, display apparatus and display method
  申请人：CANON KABUSHIKI KAISHA

  公开号：EP0460703A1

  公开（公告）日：1991-12-11

  A mesomorphic compound represented by the following formula (I): wherein R1 and R2 respectively denote an alkyl group or alkoxy group each having 4 - 16 carbon atoms optionally substituted, halogen, -CN or -CF3. The mesomorphic compound is effective for providing a ferroelectric liquid crystal composition showing an improved low-temperature operation characteristic and a decreased temperature-dependence of response speed.

  由下式(I)代表的中间体化合物： 其中 R1 和 R2 分别表示具有 4 - 16 个碳原子的烷基或烷氧基，任选被卤素、-CN 或-CF3 取代。该介形化合物可有效提供一种铁电液晶组合物，其低温工作特性得到改善，响应速度的温度依赖性降低。
• US5318720A
  申请人：——

  公开号：US5318720A

  公开（公告）日：1994-06-07