1,3-Difluoro-2-isothiocyanato-5-[4-(4-propylphenyl)phenyl]benzene | 356798-18-0

• 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: 1,3-Difluoro-2-isothiocyanato-5-[4-(4-propylphenyl)phenyl]benzene
• CAS: 356798-18-0
• 化学式: C₂₂H₁₇F₂NS
• 分子量: 365.446
• InChiKey: BWIHHLFUIGYTNH-UHFFFAOYSA-N

物化性质

• 沸点：
  504.4±50.0 °C(Predicted)
• 密度：
  1.14±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  8.1
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  44.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4-丙基联苯硼酸 、 4-溴-2,6-二氟苯胺 在 四(三苯基膦)钯 、 caesium carbonate 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 生成 1,3-Difluoro-2-isothiocyanato-5-[4-(4-propylphenyl)phenyl]benzene
  参考文献：
  名称：

  联苯类液晶材料的制备方法

  摘要：

  本发明提供了一种联苯类液晶材料的制备方法，所述联苯类液晶材料如式I所示所述联苯类液晶材料的制备包括如下步骤：1)合成：在第一有机溶剂里，将式II的化合物式III的化合物和碱，在催化剂的作用下加热发生铃木反应：其中，R1为‑F或‑NH2，R2为具有3‑7个碳原子的烷基、具有3‑7个碳原子的不饱和烃基或具有3‑7个碳原子的烷氧基，L1，L2，L3和L4分别为H或F，m为0，1或2，X为‑Cl，‑Br或‑I，为或2)提纯：上述反应完成后，用索式提取器对步骤1)反应产物进行提纯。本发明提供的联苯类液晶材料的制备提纯方法，仪器简单，操作方便，节省时间，纯度高，损失少。

  公开号：

  CN106397288B

文献信息

• Liquid crystal compositions comprising mesogenic compounds, and devices for high-frequency thechnology
  申请人：SAMSUNG ELECTRONICS CO., LTD.

  公开号：US10023798B2

  公开（公告）日：2018-07-17

  Disclosed are novel mesogenic compounds, liquid crystal compositions (liquid-crystalline media) comprising them and suitable for high-frequency technology, and high-frequency devices using them, such as phase shifters, antennas, tunable filters, switching devices, e.g. operated in the microwave region, to a process for preparing the compositions. The liquid crystal compositions have high optical anisotropy, a positive dielectric anisotropy and a wide temperature range of nematic phases.

  本发明公开了新型介晶化合物、包含这些化合物且适用于高频技术的液晶组合物（液晶介质）、使用这些化合物的高频设备（如移相器、天线、可调谐滤波器、开关设备，例如在微波区域工作的设备）以及制备这些组合物的工艺。液晶组合物具有高光学各向异性、正介电各向异性和宽温度范围的向列相。
• Birefringent liquid crystal composition comprising alkylsulfanylaryl isothiocyanato tolane compounds
  申请人：Essilor International

  公开号：US11279878B2

  公开（公告）日：2022-03-22

  The present invention relates to an optical article comprising a birefringent liquid crystal composition, said composition comprising more than 30% by weight based on the total weight of the composition of tolane compounds of formula R—S—Z1-A-Z2—NCS, in which R is a substituted or unsubstituted, linear or branched alkyl group, Z1 and Z2 are aryl groups, and A is an ethynyl group, an arylethynyl group or an ethynylarylethynyl group.

  本发明涉及一种包含双折射液晶组合物的光学制品，所述组合物包含按重量计占组合物总重量 30% 以上的式 R-S-Z1-A-Z2-NCS 的甲苯化合物，其中 R 是取代或未取代的直链或支链烷基，Z1 和 Z2 是芳基，A 是乙炔基、芳基乙炔基或乙炔芳基乙炔基。
• NOVEL SMECTIC PHASE A LIQUID CRYSTAL MATERIAL
  申请人：Halation Photonics Corporation

  公开号：EP2894148B1

  公开（公告）日：2019-04-03
• SMECTIC A-PHASE LIQUID CRYSTAL MATERIAL
  申请人：Li Wenlei

  公开号：US20140160384A1

  公开（公告）日：2014-06-12

  The present invention relates to a smectic A phase liquid crystal material, which contains at least one heterocyclic compound. The smectic A phase liquid crystal material of the present invention may further contain at least one ester compound and an ionic compound. By using the smectic A phase liquid crystal material in a display device, a displayed image can be completely erased without any residual images after a long-term placement or a long-term drive, the contrast is generally higher than 10, and the drive voltage is generally 20 to 50 V.
• LIQUID CRYSTAL COMPOSITIONS COMPRISING MESOGENIC COMPOUNDS, AND DEVICES FOR HIGH-FREQUENCY THECHNOLOGY
  申请人：SAMSUNG ELECTRONICS CO., LTD.

  公开号：US20170051202A1

  公开（公告）日：2017-02-23

  The present disclosure relates to novel mesogenic compounds, to liquid crystal compositions (liquid-crystalline media) comprising them and suitable for high-frequency technology, and to high-frequency devices using them, such as phase shifters, antennas, tunable filters, switching devices, e.g. operated in the microwave region, to a process for preparing said compositions. A liquid-crystalline medium of the present disclosure includes: at least one compound of the formula I and at least one compound of the formula II; or at least one compound of the formula I and at least one compound of the formula III; or at least one compound of the formula II and at least one compound of the formula III; or at least one compound of the formula I and at least one compound of the formula II and at least one compound of the formula III. The present disclosure makes it possible to create liquid crystal compositions with high optical anisotropy (Δn), a positive dielectric anisotropy (Δε) and a wide temperature range of the nematic phases.