4-ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl | 1241535-57-8

• 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: 4-ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl
• 英文别名: 4'-Ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl；4-Ethoxy-2,2',3,3'-tetrafluorobiphenyl；1-(2,3-difluorophenyl)-4-ethoxy-2,3-difluorobenzene
• CAS: 1241535-57-8
• 化学式: C₁₄H₁₀F₄O
• 分子量: 270.226
• InChiKey: MBYHQIPPRUOFKF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4-ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl 在 吡啶 、 lithium aluminium tetrahydride 、 仲丁基锂 作用下， 以 四氢呋喃 、 正己烷 、 环己烷 、 甲苯 为溶剂， 反应 16.0h， 生成 ((4'-ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl-4-yl)methyl)triphenylphosphonium chloride
  参考文献：
  名称：

  LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY ELEMENT

  摘要：

  公开号：

  EP2479162B1
• 作为产物：
  描述：

  1-溴-4-乙氧基-2,3-二氟苯 、 2,3-二氟苯硼酸 在 四丁基溴化铵 、 potassium carbonate 作用下， 以 乙醇 、 水 、 甲苯 为溶剂， 以72 %的产率得到4-ethoxy-2,2',3,3'-tetrafluoro-1,1'-biphenyl
  参考文献：
  名称：

  一种含硫的联苯类液晶化合物的制备方法

  摘要：

  本发明公开了一种含硫的联苯类液晶化合物的制备方法，所述液晶化合物为具有通式I的化合物，所述通式I为 本发明所公开的制备方法具有操作简便、污染性小、收率高等特点，特别适用于工业化生产。

  公开号：

  CN115636775A

文献信息

• LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：KOBAYASHI Masahide

  公开号：US20120193577A1

  公开（公告）日：2012-08-02

  The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K 33 , a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition having characteristics similar to these of the compound. The invention provides a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.

  该发明提供了一种液晶化合物，具有高热稳定性、耐光性等特点，具有宽的向列相温度范围，低粘度，适当的光学各向异性，大的弹性常数K33，大的负介电各向异性，并且与其他液晶化合物具有良好的兼容性。该发明提供了一种具有与该化合物相似特性的液晶组合物。该发明提供了一种具有短响应时间、低电功耗、低驱动电压、大对比度和可以使用的宽温度范围的液晶显示装置。该化合物是一种2,3-二氟苯衍生物(1)，具有环己烷环、环己烯环或苯环苯基和丁烯键合基的组合。该液晶组合物包括这种化合物，液晶显示装置包含该组合物。
• FIVE-RING COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：KOBAYASHI Masahide

  公开号：US20110240919A1

  公开（公告）日：2011-10-06

  The subject is to provide a liquid crystal that has a high stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K 33 , and further has a large negative dielectric anisotropy and an excellent compatibility with any other liquid crystal compound. The invention provides the compound (1): wherein, for example, R 1 and R 2 are hydrogen, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons or alkenyloxy having 2 to 9 carbons; when one of the ring A 1 , the ring A 2 and the ring A 3 is 1,4-phenylene or 2,3-difluoro-1,4-phenylene, the other two are 1,4-cyclohexylene or 1,4-cyclohexenylene; and Z 1 is a single bond, —(CH 2 ) 2 —, —CH 2 O—, —OCH 2 —, —COO— or —OCO—.

  该专利的目的是提供一种液晶，具有高热稳定性、光稳定性、宽的向列相温度范围、低粘度、大光学畸变和适当的弹性常数K33，而且具有大的负介电畸变和与任何其他液晶化合物的优异相容性。该发明提供了化合物（1）：其中，例如，R1和R2是氢、具有1至10个碳的烷基、具有2至10个碳的烯基、具有1至9个碳的烷氧基、具有2至9个碳的烷氧基烷基或具有2至9个碳的烯氧基；当环A1、环A2和环A3中的一个是1,4-苯撑基或2,3-二氟-1,4-苯撑基时，另外两个是1,4-环己撑基或1,4-环己烯撑基；而且Z1是单键、—(CH2)2—、—CH2O—、—OCH2—、—COO—或—OCO—。
• Trans-Monofluoroethylene Liquid Crystal Compound Having Negative Dielectric Anisotropy, A Liquid Crystal Composition Using The Compound And A Liquid Crystal Display Device
  申请人：YANO Tomohiro

  公开号：US20110291047A1

  公开（公告）日：2011-12-01

  A liquid crystal compound having general physical properties necessary for a liquid crystal compound, a high stability to heat, light or the like, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy and steep electro-optic characteristics, a wide temperature range of a nematic phase and an excellent compatibility with other liquid crystal compounds, and a liquid crystal compound especially having a wide temperature range of a nematic phase. A compound represented by formula (1). with, for example, R 1 and R 2 are alkyl having 1 to 10 carbons; A 1 is 1,4-cyclohexylene; A 2 is 2,3-difluoro-1,4-phenylene; X is fluorine or chlorine; Z 1 and Z 2 are a single bond; and p and q is 0 or 1.

  一种液晶化合物，具有液晶化合物所需的一般物理特性，高热稳定性、光稳定性或类似的稳定性，粘度小，适当的折射率各向异性，适当的介电各向异性和陡峭的电光特性，广泛的向列相温度范围和与其他液晶化合物的优异相容性，特别是具有广泛的向列相温度范围的液晶化合物。化合物由公式（1）表示，例如，R1和R2是具有1至10个碳的烷基；A1是1,4-环己基；A2是2,3-二氟-1,4-苯基；X是氟或氯；Z1和Z2是单键；p和q为0或1。
• FOUR-RING LIQUID CRYSTAL COMPOUND HAVING TETRAHYDROPYRAN AND 2,2',3,3'-TETRAFLUOROBIPHENYL, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：Hirata Kenji

  公开号：US20110297881A1

  公开（公告）日：2011-12-08

  The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (Δ∈) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (Δn), a large negative dielectric anisotropy (Δ∈) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (Δ∈) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.

  本发明提供了一种液晶化合物，具有较大的负介电各向异性（Δ∈），并且具有至少一种特性，如耐热性、耐光性等稳定性，高清晰点，适当的折射率各向异性（Δn），较大的负介电各向异性（Δ∈）和与其他液晶化合物的良好相容性。通过使用具有1）四氢吡喃环和2）二苯基甲烷基团的化合物，特别是负介电各向异性（Δ∈）值得到提高，从而利用了该效应。
• Four-ring liquid crystal compound having tetrahydropyran and 2,2′,3,3′-tetrafluorobiphenyl, liquid crystal composition and liquid crystal display device
  申请人：Hirata Kenji

  公开号：US08389073B2

  公开（公告）日：2013-03-05

  The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (Δ∈) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (Δn), a large negative dielectric anisotropy (Δ∈) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (Δ∈) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.

  本发明提供了一种液晶化合物，其具有较大的负介电各向异性（Δ∈），并且具有至少一种特性，例如对热、光等的稳定性，较高的清晰点，适当的折射率各向异性（Δn），较大的负介电各向异性（Δ∈）和与其他液晶化合物的良好相容性。通过使用具有1）四氢吡喃环和2）苯环基团的该化合物，特别是负介电各向异性（Δ∈）的值得到了显著提高，从而利用了该效应。