2',3-difluoro-4"-pentyl-1,1',4',1"-terphenyl | 1052241-32-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2',3-difluoro-4"-pentyl-1,1',4',1"-terphenyl
• 英文别名: 2-Fluoro-1-(3-fluorophenyl)-4-(4-pentylphenyl)benzene
• CAS: 1052241-32-3
• 化学式: C₂₃H₂₂F₂
• 分子量: 336.424
• InChiKey: AUDWDPAROPLMPS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.8
• 重原子数：
  25
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2',3-difluoro-4"-pentyl-1,1',4',1"-terphenyl 、 3,5-二氟苯硼酸 在 正丁基锂 、 碘 、 仲丁基锂 作用下， 生成 4-[difluoro(3,4,5-trifluorophenoxy)methyl]-4'''-n-pentyl-2',2'',3,5-tetrafluoro-1,1',4',1'',4'',1'''-quaterphenyl
  参考文献：
  名称：

  Nematic Liquid Crystal Compounds with Five-Ring Framework

  摘要：

  A series of novel liquid crystal compounds with five-ring framework having a -CF(2)O- linkage group (1a-1e) has been synthesized and their physical properties were measured. These compounds are characterized to have higher nematic-isotropic liquid transition temperatures and broader mesophase temperature range. As for the anisotropic properties, this series is categorized as compounds having large Delta epsilon and Delta n. Although these compounds possess five rings in their structures, they exhibit high miscibility caused by the rotately non-symmetric structures including the lateral fluorine substituted phenylene rings. One of the novel compounds exhibits SmF phase and shows the second-order phase transition of SmA to SmC. The compounds are effective to improve the response property of the mixtures due to their high elastic constants. These five-ring compounds possess diversified properties and of high potential materials for improving the LCD performances.

  DOI：

  10.1080/15421400903065440
• 作为产物：
  描述：

  3-fluoro-4-iodo-4'-n-pentylbiphenyl 、 3-氟苯基硼酸 在 palladium on activated charcoal potassium carbonate 作用下， 以 Solmix A-11 、 水 、 甲苯 为溶剂， 反应 3.0h， 以79%的产率得到2',3-difluoro-4"-pentyl-1,1',4',1"-terphenyl
  参考文献：
  名称：

  LIQUID CRYSTAL COMPOUND HAVING DIFLUOROPROPENYLENEOXY BONDING GROUP

  摘要：

  该发明提供了一种具有化合物所需的一般物理性质的液晶化合物，即对热、光等的稳定性，液晶相的宽温度范围，高清晰点，与其他化合物的良好相容性，大光学各向异性和大介电各向异性的化合物；由以下式表示的化合物（1）： 其中，例如，R1是具有1到20个碳的烷基；环A1和环A4分别是1,4-环己烯基，1,4-苯基，或者1,4-苯基，其中任意氢原子被卤素替代；Z1和Z4分别是单键；L1，L2，L3和L4分别是氢或氟；X1是氟，氯，-CF3或-OCF3。

  公开号：

  US20120029194A1

文献信息

• FIVE-RING LIQUID CRYSTAL COMPOUND HAVING CF20 BONDING GROUP, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：Tanaka Hiroyuki

  公开号：US20100127211A1

  公开（公告）日：2010-05-27

  The invention provides a five-ring liquid crystal compound having a CF 2 O bonding group as a new compound having a general physical properties necessary for compounds, stability to heat, light and so forth, a wide temperature range of liquid crystal phases, a high clearing point, a good compatibility with other compounds, a large dielectric anisotropy and refractive index anisotropy, and an especially high clearing point and an especially large refractive index anisotropy, and provides a liquid crystal composition and a liquid crystal display device.

  本发明提供了一种具有CF2O键合基团的五环液晶化合物，作为一种具有化合物所需的一般物理性质、对热、光等的稳定性、广泛的液晶相温度范围、高清晰点、与其他化合物良好的相容性、大电介质各向异性和折射率各向异性，特别是高清晰点和特别大的折射率各向异性的新化合物，并提供了一种液晶组合物和液晶显示装置。
• US7951433B2
  申请人：——

  公开号：US7951433B2

  公开（公告）日：2011-05-31
• US8372975B2
  申请人：——

  公开号：US8372975B2

  公开（公告）日：2013-02-12
• LIQUID CRYSTAL COMPOUND HAVING DIFLUOROPROPENYLENEOXY BONDING GROUP
  申请人：Tanaka Hiroyuki

  公开号：US20120029194A1

  公开（公告）日：2012-02-02

  The invention provides a liquid crystal compound having general physical properties necessary for the compound, namely stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a high clearing point, a good compatibility with other compounds, a large optical anisotropy and a large dielectric anisotropy; a compound represented by formula (1): wherein, for example, R 1 is alkyl having 1 to 20 carbons; ring A 1 and ring A 4 each are 1,4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which arbitrary hydrogen is replaced by halogen; Z 1 and Z 4 each are a single bond; L 1 , L 2 , L 3 and L 4 each are hydrogen or fluorine; and X 1 is fluorine, chlorine, —CF 3 or —OCF 3 .

  该发明提供了一种具有化合物所需的一般物理性质的液晶化合物，即对热、光等的稳定性，液晶相的宽温度范围，高清晰点，与其他化合物的良好相容性，大光学各向异性和大介电各向异性的化合物；由以下式表示的化合物（1）： 其中，例如，R1是具有1到20个碳的烷基；环A1和环A4分别是1,4-环己烯基，1,4-苯基，或者1,4-苯基，其中任意氢原子被卤素替代；Z1和Z4分别是单键；L1，L2，L3和L4分别是氢或氟；X1是氟，氯，-CF3或-OCF3。
• Nematic Liquid Crystal Compounds with Five-Ring Framework
  作者：Hiroyuki Tanaka、Atsuko Fujita

  DOI：10.1080/15421400903065440

  日期：2009.9.3

  A series of novel liquid crystal compounds with five-ring framework having a -CF(2)O- linkage group (1a-1e) has been synthesized and their physical properties were measured. These compounds are characterized to have higher nematic-isotropic liquid transition temperatures and broader mesophase temperature range. As for the anisotropic properties, this series is categorized as compounds having large Delta epsilon and Delta n. Although these compounds possess five rings in their structures, they exhibit high miscibility caused by the rotately non-symmetric structures including the lateral fluorine substituted phenylene rings. One of the novel compounds exhibits SmF phase and shows the second-order phase transition of SmA to SmC. The compounds are effective to improve the response property of the mixtures due to their high elastic constants. These five-ring compounds possess diversified properties and of high potential materials for improving the LCD performances.