2-氟乙基3-氟苯基醚 | 659-06-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 2-氟乙基3-氟苯基醚
• 英文名称: 2-Fluoroethyl 3-fluorophenyl ether
• 英文别名: m-Fluorphenyl-β-fluorethylether；2,3-Difluoro-1-ethoxybenzene；1-fluoro-3-(2-fluoroethoxy)benzene
• CAS: 659-06-3
• 化学式: C₈H₈F₂O
• 分子量: 158.148
• InChiKey: CWFHFRGXRYOTGR-UHFFFAOYSA-N

物化性质

• 沸点：
  176.6±20.0 °C(Predicted)
• 密度：
  1.132±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-氟乙基3-氟苯基醚 、 2,3-difluoro-4'-heptyloxybiphenyl 、 硼酸三甲酯 、 hydrogen peroxide water 在 甲基叔丁基醚 、 氯化钠 作用下， 以 溶剂黄146 为溶剂， 反应 3.25h， 生成 4-乙氧基-2,3-二氟苯酚
  参考文献：
  名称：

  Process for the preparation of 2,3-difluorobenzenes

  摘要：

  按公式I的1,4-二取代2,3-二氟苯可作为合成液晶化合物的中间体。

  公开号：

  US05087764A1
• 作为产物：
  描述：

  2-氟乙醇 、 m-methylbenzenediazonium tetrafluoroborate 以66%的产率得到2-氟乙基3-氟苯基醚
  参考文献：
  名称：

  一些芳烃重氮盐在溶液中的热分解和光分解产物分析研究

  摘要：

  分析了 11 种重氮芳烃四氟硼酸盐在各种溶剂中的热和光化学反应产物。大多数溶剂中的所有化合物都经过单分子杂解，得到单线态芳基阳离子，这些阳离子被溶剂捕获。这种机制对于在所有溶剂中没有吸电子取代基的芳烃重氮离子占主导地位，并且是在水中观察到的唯一反应。此外，通过芳基阳离子从氟化溶剂中和从氟化溶剂中的四氟硼酸盐提取氟化物，可获得可观的氟芳烃产率。光化学过程的产量与热反应的产量非常相似，表明主要反应通过常见或非常相似的中间体进行。由离子对重氮离子形成的芳基阳离子可与反离子反应，但是解离的重氮离子的碎裂只会产生溶剂衍生的产物。某些溶剂中的某些芳烃重氮离子会发生另一种自由基反应导致...

  DOI：

  10.1246/bcsj.75.789

文献信息

• LIQUID CRYSTALLINE COMPOUND HAVING PIPERIDINE RING, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：CHISSO CORPORATION

  公开号：EP1072593A1

  公开（公告）日：2001-01-31

  The present invention relates to a novel liquid crystalline compound represented by Formula (1): wherein R represents an alkyl group having 1 to 10 carbon atoms or a fluoroalkyl group having 1 to 10 carbon atoms, and R' represents an alkyl group having 1 to 10 carbon atoms, a fluoroalkyl group having 1 to 10 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom or a cyano group, in which any methylene groups which are not adjacent to each other in these alkyl groups and any methylene groups and/or fluoromethylene groups which are not adjacent to each other in the fluoroalkyl groups may be substituted with oxygen atoms, sulfur atoms or -CH=CH-; the rings A1, A2, A3 and A4 each independently represent 1,4-cyclohexylene, 1,4-phenylene in which 1 to 2 hydrogen atoms may be substituted with fluorine atoms, dioxane-2,5-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl, piperidine-1,4-diyl or 1-sila-1,4-cyclohexylene; B1, B2, B3, B4 and B5 each independently represent a single bond, -CH2CH2-, -CH=CH-, -OCH2-, -CH2O-, -(CH2)4-, -OCO- or -COO-; l, m, n and p each independently represent 0 or 1; and Z represents one group selected from the following moieties (I) to (V): provided that when Z is the moiety (II), l + m + n + p > 0, and the rings A1, A2, A3 and A4 each independently represent 1,4-phenylene in which 1 to 2 hydrogen atoms are substituted with fluorine atoms, pyrimidine-2,5-diyl, pyridine-2,5-diyl, piperidine-1,4-diyl or 1-sila-1,4-cyclohexylene; and that when Z is the moiety (III) and l = m = n = p = 0, R is an alkyl group, and R' is not a fluorine atom or a cyano group when B5 is a single bond. The present invention further relates to a liquid crystal composition comprising the above compound and a liquid crystal display element comprising the above composition. The liquid crystalline compound of the present invention has a particularly large dielectric anisotropy and refractive anisotropy and a low viscosity and is excellent in a low temperature compatibility.

  本发明涉及一种新颖的液晶化合物，其表示为式（1）所示：其中R代表具有1至10个碳原子的烷基基团或具有1至10个碳原子的氟烷基基团，R'代表具有1至10个碳原子的烷基基团、具有1至10个碳原子的氟烷基基团、氟原子、氯原子、溴原子或氰基，在这些烷基基团中不相邻的任何亚甲基基团和不相邻的亚甲基和/或氟亚甲基基团可以用氧原子、硫原子或-CH=CH-取代；环A1、A2、A3和A4分别独立地表示1,4-环己亚甲基、1,4-苯基，其中1至2个氢原子可以用氟原子取代，二氧杂环戊二亚基、嘧啶-2,5-二亚基、吡啶-2,5-二亚基、哌啶-1,4-二亚基或1-硅-1,4-环己亚甲基；B1、B2、B3、B4和B5分别独立地表示单键、-CH2CH2-、-CH=CH-、-OCH2-、-CH2O-、-(CH2)4-、-OCO-或-COO-；l、m、n和p各自独立地表示0或1；Z表示从以下基团（I）到（V）中选择的一个基团：但是当Z为基团（II）时，l + m + n + p > 0，环A1、A2、A3和A4分别独立地表示1,4-苯基，其中1至2个氢原子被氟原子取代，嘧啶-2,5-二亚基、吡啶-2,5-二亚基、哌啶-1,4-二亚基或1-硅-1,4-环己亚甲基；当Z为基团（III）且l = m = n = p = 0时，R为烷基基团，当B5为单键时，R'不是氟原子或氰基。本发明还涉及包括上述化合物的液晶组合物和包括上述组合物的液晶显示元件。本发明的液晶化合物具有特别大的介电各向异性和折射各向异性，低粘度，并且在低温兼容性方面表现出色。
• LIQUID-CRYSTALLINE COMPOUNDS HAVING BICYCLO 1.1.1]PENTANE STRUCTURE, LIQUID-CRYSTAL COMPOSITION, AND LIQUID-CRYSTAL DISPLAY ELEMENT
  申请人：CHISSO CORPORATION

  公开号：EP0987238A1

  公开（公告）日：2000-03-22

  An object of the present invention is to provide novel liquid crystalline compounds which have bicyclo[1.1.1]pentane structure and make liquid crystal compositions principally for TFT display mode, STN display mode, or TN display mode develop preferable various physical properties, particularly liquid crystalline compounds from which liquid crystal compositions by which driving at a low voltage and a high speed response are possible and which have a high reliability can be produced; to provide liquid crystal compositions comprising the compound; and to provide liquid crystal display devices fabricated by using the composition: the liquid crystalline compounds can be expressed by the general formula (1) wherein R1, A0 to A3, Z0 to Z3, X, ℓ, m, n, and 0 are defined hereinbefore.

  本发明的一个目的是提供具有双环[1.1.1]戊烷结构的新型液晶化合物，用于制备主要用于TFT显示模式、STN显示模式或TN显示模式的液晶组合物，开发出各种理想的物理性质，特别是可以通过这些液晶化合物制备出驱动电压低且响应速度快、具有高可靠性的液晶组合物；提供包含该化合物的液晶组合物；以及提供通过使用该组合物制造的液晶显示装置：液晶化合物可以用通用公式（1）表示，其中R1、A0至A3、Z0至Z3、X、ℓ、m、n和o如前所述定义。
• Hexahydrodibenzofuran derivatives
  申请人：Jansen Axel

  公开号：US20070247585A1

  公开（公告）日：2007-10-25

  Disclosed are hexahydrodibenzofuran compounds of formula I, the preparation thereof, the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.

  本发明公开了式I的六氢二苯并呋喃化合物及其制备方法，其用作液晶介质组分，以及包含根据本发明的液晶介质的电光显示元件。
• LIQUID CRYSTAL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS CONTAINING THE COMPOUNDS, AND LIQUID CRYSTAL DISPLAY DEVICES MADE BY USING THE COMPOSITIONS
  申请人：CHISSO CORPORATION

  公开号：EP0916639A1

  公开（公告）日：1999-05-19

  The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compositions comprising the liquid crystalline compound; and to provide liquid crystal display devices using the liquid crystal composition therein; the liquid crystalline compound is expressed by the general formula (1) wherein R1 and Y1 represent an alkyl group having 1 to 20 carbon atoms; X1, X2, and X3 independently represent single bond, 1,2-ethylene group, vinylene group, -COO-, -CF2O-, or -OCF2-; ring A1, ring A2, ring A3, and ring A4 independently represent trans-1,4-cyclohexylene, or 1,4-phenylene hydrogen atom on the ring may be replaced by fluorine atom or chlorine atom provided that at least one of ring A2, ring A3, and ring A4 represents 2,3-difluoro-1,4-phenylene; m and n are 0 or 1, and each element which constitutes this compound may be replaced by its isotope.

  本发明旨在提供具有低粘度、高负介电各向异性、高电阻率和高电压保持比，并且对热和紫外线稳定的液晶化合物；提供包含该液晶化合物的液晶组合物；以及提供使用该液晶组合物的液晶显示设备； 所述液晶化合物由通式（1）表示 其中 R1 和 Y1 代表具有 1 至 20 个碳原子的烷基；X1、X2 和 X3 独立地代表单键、1,2-乙烯基、乙烯基、-COO-、-CF2O- 或 -OCF2-；环 A1、环 A2、环 A3 和环 A4 独立地代表反式-1,4-环己烯或 1,4-亚苯基，环上的氢原子可被氟原子或氯原子取代，条件是环 A2、环 A3 和环 A4 中至少有一个代表 2,3-二氟-1,4-亚苯基；m 和 n 为 0 或 1，构成该化合物的每个元素可被其同位素取代。
• NOVEL LIQUID-CRYSTAL COMPOUNDS HAVING LARGE NEGATIVE VALUE OF PERMITTIVITY ANISOTROPY, LIQUID-CRYSTAL COMPOSITION, AND LIQUID-CRYSTAL DISPLAY ELEMENT
  申请人：CHISSO CORPORATION

  公开号：EP1026143A1

  公开（公告）日：2000-08-09

  An object of the present invention is to provide novel liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value together, to provide liquid crystal compositions comprising the liquid crystalline compound, and to provide liquid crystal display devices fabricated by using the liquid crystal composition; the liquid crystalline compounds have 2,3-difluorophenyl moiety and are expressed by the general formula (1) wherein Ra and Rb each independently represent a straight chain or branched alkyl group having 1 to 20 carbon atoms in which group any methylene group may be replaced by -O-, -CH=CH-, or -C≡C-, but there is not a case wherein -O- continues; ring A1 represents cyclohexane-1,4-diyl in which ring any methylene group may be replaced by -O-; ring A2 represents 2,3-difluoro-1,4-phenylene in which phenylene hydrogen atoms at 5-position and 6-position may each independently be replaced by methyl groups or fluorine atoms; Z1 and Z2 represent single bond or -CH2CH2-; Xa, Xb, Xc, and Xd represent hydrogen atom, fluorine atom, or chlorine atom, but at least one of Xa, Xb, Xc, and Xd is fluorine atom or chlorine atom.

  本发明的目的是提供新型液晶化合物，其介电常数各向异性值为负且极大，光学各向异性值较小，提供包含该液晶化合物的液晶组合物，并提供使用该液晶组合物制造的液晶显示设备；该液晶化合物具有 2,3-二氟苯基分子，由通式 (1) 表示 其中 Ra 和 Rb 各自独立地代表具有 1 至 20 个碳原子的直链或支链烷基，在该基团中，任何亚甲基可被 -O-、-CH=CH- 或 -C≡C- 取代，但不存在 -O- 继续存在的情况；环 A1 代表环己烷-1,4-二基，在该环中，任何亚甲基可被 -O- 取代；环 A2 代表 2，3-二氟-1，4-亚苯基，其中 5 位和 6 位的亚苯基氢原子可各自独立地被甲基或氟原子取代； Z1 和 Z2 代表单键或-CH2CH2-； Xa、Xb、Xc 和 Xd 代表氢原子、氟原子或氯原子，但 Xa、Xb、Xc 和 Xd 中至少有一个是氟原子或氯原子。