| 1359769-18-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• CAS: 1359769-18-8
• 化学式: C₂₀H₂₀O₅
• 分子量: 340.376
• InChiKey: ZGNLGVKMYPUBDN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.88
• 重原子数：
  25.0
• 可旋转键数：
  7.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  61.83
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为产物：
  描述：

  对羟基苯甲酸 在 吡啶 、 氯化亚砜 作用下， 以 甲醇 为溶剂， 生成
  参考文献：
  名称：

  Synthesis and Mesomorphism of Novel Liquid Crystalline: p-(p′-n-Alkoxy Benzoyloxy) Methyl Cinnamates

  摘要：

  A new homologous series p-(p '-n-alkoxy benzoyloxy) methyl cinnamates is synthesized with a view to understand and establish the relation between mesogenic properties and structure of molecules. Ethyl to octyl, decyl, dodecyl, tetradecyl, and hexadecyl homolgues are enantiotropically nematogenic, while the methyl homologue is nonmesogenic. None of the homologues exhibit a smectogenic mesophase. An odd-even effect is observed in the nematic-isotropic transition curve. The average thermal stability is 105.0 degrees C and the nematogenic mesophase ranges from 11.0 degrees C to 54.0 degrees C. Thus, the series is of a middle ordered melting type with moderate nematogenic range. Analytical data confirm the structure of the compounds, and the mesomorphism was identified by optical microscopy. The mesogenic properties are compared with structurally similar compounds.

  DOI：

  10.1080/15421406.2011.591664

文献信息

• Study of mesomorphism and its relation to molecular structure with special reference to central bridges viz. -COO- and -CH=CH-COO- of the homologous series
  作者：V. S. Sharma、R. B. Solanki、P. K. Patel、R. B. Patel

  DOI：10.1080/15421406.2015.1073564

  日期：2016.1.22

  Two ester homologous series of mesogens, viz., Methyl-p-(p '-n-alkoxy benzoyloxy) cinnamates (X) and Methyl-p-(p '-n-alkoxy cinnamoyloxy) cinnamates (Y) being structurally similar are discussed. Both (X) and (Y) differ in respect of central bridges linking two phenyl rings. Only enantiotropic nematogenic character is observed without exhibition of any smectic character by all members of series (X) and (Y). Thermal stability of series (X) is relatively low as compared to (Y), but nematogenic mesophase lengths are of reverse order. Solid-nematic/solid-isotropic and nematic-isotropic transition curves in the phase diagrams behave in normal manner.