4-nonyloxytetrafluorophenylacetylene | 149083-69-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 4-nonyloxytetrafluorophenylacetylene
• CAS: 149083-69-2
• 化学式: C₁₇H₂₀F₄O
• 分子量: 316.339
• InChiKey: SWLPBTOQLCAHAH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.35
• 重原子数：
  22.0
• 可旋转键数：
  9.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  9.23
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  4-nonyloxytetrafluorophenylacetylene 、 4-((2,2,3,3-tetrafluoropropoxy)carbonyl)phenyl 4-iodobenzoate 在 bis-triphenylphosphine-palladium(II) chloride copper(l) iodide 、 三苯基膦 作用下， 以 三乙胺 为溶剂， 生成
  参考文献：
  名称：

  Mesomorphic Properties of a Homologous Series of Liquid Crystals with Short Fluorocarbon Chain

  摘要：

  A homologous series of short fluorocarbon chain-containing liquid crystals has been synthesized. Several of them show the phase sequence N --> SmA --> SmC in the cooling process from the isotropic liquid. The mesomorphic properties have been studied by polarizing microscopy and DSC measurements. The thermostability of SmC phases was enhanced along with the lengthening of fluorocarbon chains.

  DOI：

  10.1080/10587250210547
• 作为产物：
  描述：

  ((trimethylsilyl)ethynyl)pentafluorobenzene 、 1-壬醇 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 4-nonyloxytetrafluorophenylacetylene
  参考文献：
  名称：

  Synthesis and Mesomorphic Properties of [4-((4-n-Alkoxy-2,3,5,6-Tetrafluorophenyl)Ethynyl)Phenyl] Fluoro-Substituted Benzoates

  摘要：

  Five series of liquid crystals incorporating a 2,3,5,6-tetrafluorophenylene moiety and a terminal fluorosubstituted phenyl group have been prepared. The mesomorphic properties have been studied by polarizing microscopic textural observation and DSC measurements. The effect of terminal fluorosubstituent on mesomorphic behaviour has been discussed.

  DOI：

  10.1080/10587250008024417

文献信息

• Novel fluorinated liquid crystals. Part VI. The synthesis and phase transition of novel cholesteric liquid crystals containing 1,4-tetrafluorophenylene units
  作者：Jianxun Wen、Minquan Tian、Qi Chen

  DOI：10.1016/0022-1139(94)03048-0

  日期：1994.8

  1-[(4-n-Alkoxy-2,3,5,6-tetrafluorophenyl)ethynyl]-4-[(4-((S)-2-methylbutoxy)-2,3,5 ,6-tetrafluorophenyl)ethynyl]benzenes have been prepared from the starting material 1-pentafluorophenyl-2-trimethylsilylacetylene. Textural observation by polarizing microscopy showed that these materials were cholesteric liquid crystals when the terminal alkoxy chains were of sufficient length. The effect of symmetrical

  1-[（4-正烷氧基-2,3,5,6-四氟苯基）乙炔基] -4-[（4-（（S）-2-甲基丁氧基）-2,3,5,6-四氟苯基）乙炔基由起始原料1-五氟苯基-2-三甲基甲硅烷基乙炔制备了]苯。偏光显微镜的织构观察表明，当末端烷氧基链具有足够的长度时，这些材料是胆甾型液晶。还讨论了苯基的对称四氟取代对介晶行为的影响。