1,4-二(4-乙基苯基)-2-氟苯 | 682351-04-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1,4-二(4-乙基苯基)-2-氟苯
• 英文名称: 1-(4'-ethylphenyl)-4-(4"-ethylphenyl)-2-fluorobenzene
• 英文别名: 1,4-Bis(4-ethylphenyl)-2-fluorobenzene
• CAS: 682351-04-8
• 化学式: C₂₂H₂₁F
• 分子量: 304.407
• InChiKey: ZIHXMEMHNVQEMT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.9
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4-乙基苯硼酸 、 1,4-二溴-2-氟苯 在 四(三苯基膦)钯 、 caesium carbonate 作用下， 以 1,4-二氧六环 为溶剂， 反应 8.0h， 以81%的产率得到1,4-二(4-乙基苯基)-2-氟苯
  参考文献：
  名称：

  通过二溴化fluorobenzenes的位点选择性的Suzuki-Miyaura交叉偶联反应官能化的氟化三联苯的合成

  摘要：

  通过二溴氟苯的定点Suzuki-Miyaura交叉偶联反应制备了多种氟化三联苯，例如1,2-二溴-3,5-二氟苯，1,4-二溴-2-氟苯，1,3-二溴-4-氟苯，和1,2-二溴-4-氟苯。

  DOI：

  10.1016/j.jfluchem.2012.12.003

文献信息

• LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20150108402A1

  公开（公告）日：2015-04-23

  The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.

  该方法涉及一种具有负介电各向异性的液晶组分，其中包括一种具有高紫外稳定性的特定化合物作为第一组分，该组分可能包括一种具有高最高温度或小粘度的特定化合物作为第二组分，以及一种具有大负介电各向异性的特定化合物作为第三组分，以及一种具有可聚合基团的添加剂组分。
• Liquid crystal composition and liquid crystal display device
  申请人：JNC CORPORATION

  公开号：US10030198B2

  公开（公告）日：2018-07-24

  The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.

  该手段涉及一种具有负电介电各向异性的液晶组合物，该组合物由对紫外线具有高稳定性的特定化合物作为第一成分，其中该组合物可包括具有高最高温度或小粘度的特定化合物作为第二成分，具有大负电介电各向异性的特定化合物作为第三成分，以及具有可聚合基团的特定化合物作为添加剂成分。
• Liquid crystal display device
  申请人：JNC CORPORATION

  公开号：US10041000B2

  公开（公告）日：2018-08-07

  The subject is to show liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The disclosure relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates.

  本发明的主题是显示具有响应时间短、电压保持比大、阈值电压低、对比度大、使用寿命长和闪烁率小等特性的液晶显示装置。本公开涉及一种液晶显示装置，包括形成在一对相对的基板中的一个或两个上的电极组，以及连接到电极组的多个有源器件，和形成在这对基板的相对表面上的液晶配向膜，以及夹在这对基板之间的液晶成分。
• Liquid crystal composition and liquid crystal display device thereof
  申请人：JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.

  公开号：US10723947B2

  公开（公告）日：2020-07-28

  Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly. The liquid crystal composition is suitable for use in a liquid crystal display device, enabling the liquid crystal display device to have the following properties: a high voltage holding ratio, a short response time, a high contrast ratio, a low energy consumption, and being green and environmentally friendly, etc.

  本发明提供了一种液晶组合物，包括：一种或多种通式 I 的化合物，占液晶组合物总重量的 1-30%；一种或多种通式 II 的化合物，占液晶组合物总重量的 1-30%；一种或多种通式 III 的化合物，占液晶组合物总重量的 1-20%；以及一种或多种通式 IV 的化合物，占液晶组合物总重量的 30-80%。该液晶组合物至少具有以下一种特性：大比电阻、高电压保持比、适当的光学各向异性、大介电各向异性、小粘度、低阈值电压等，而且绿色环保。该液晶组合物适用于液晶显示设备，使液晶显示设备具有以下特性：高电压保持比、短响应时间、高对比度、低能耗、绿色环保等。
• Liquid crystal composition and application thereof
  申请人：Jiangsu Hecheng Display Technology Co., Ltd.

  公开号：US11162028B2

  公开（公告）日：2021-11-02

  A liquid crystal composition includes at least one compound of general formula I and at least one compound selected from a group consisting of the compounds of general formula II-1 and general formula II-2. The liquid crystal composition provided by the present invention has suitable optical anisotropy, high clearing point, high elastic constants K11 and K33, and relatively low dielectric anisotropy. When the liquid crystal composition is applied to a liquid crystal display device, the liquid crystal display device may have better weather resistance and higher contrast ratio.

  液晶组合物包括至少一种通式 I 的化合物和至少一种选自通式 II-1 和通式 II-2 化合物的化合物。本发明提供的液晶组合物具有适当的光学各向异性、高清澈点、高弹性常数 K11 和 K33 以及相对较低的介电各向异性。当液晶组合物应用于液晶显示设备时，液晶显示设备可具有更好的耐候性和更高的对比度。