Applications of 2,3,5,6-Tetrafluorophenylene in Design and Synthesis of Liquid Crystal Molecules

DAI Xiu-wen; CAI Liang-zhen; WEN Jian-xun

doi:10.3788/YJYXS20132804.0501

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Applications of 2,3,5,6-Tetrafluorophenylene in Design and Synthesis of Liquid Crystal Molecules

Material Physics & Chemistry | 更新时间：2020-08-12

- Applications of 2,3,5,6-Tetrafluorophenylene in Design and Synthesis of Liquid Crystal Molecules
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 4, Pages: 501-509(2013)
- 作者机构：
  
  1. 华东理工大学化学与分子工程学院上海,200237
  2. 上海天问化学有限公司上海,200232
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132804.0501
  CLC： O753+.2
- Received：05 December 2012，
  
  Revised：08 March 2013，
  
  Published：15 August 2013
- 稿件说明：
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戴修文, 蔡良珍, 闻建勋. 2,3,5,6-全氟亚苯基在液晶分子设计及合成上的应用[J]. 液晶与显示, 2013,28(4): 501-509

DAI Xiu-wen, CAI Liang-zhen, WEN Jian-xun. Applications of 2,3,5,6-Tetrafluorophenylene in Design and Synthesis of Liquid Crystal Molecules[J]. , 2013,28(4): 501-509
戴修文, 蔡良珍, 闻建勋. 2,3,5,6-全氟亚苯基在液晶分子设计及合成上的应用[J]. 液晶与显示, 2013,28(4): 501-509 DOI： 10.3788/YJYXS20132804.0501.

DAI Xiu-wen, CAI Liang-zhen, WEN Jian-xun. Applications of 2,3,5,6-Tetrafluorophenylene in Design and Synthesis of Liquid Crystal Molecules[J]. , 2013,28(4): 501-509 DOI： 10.3788/YJYXS20132804.0501.

摘要

设计并合成了两类含氟液晶化合物

分别为4-[(4-苯甲酸2

6-四氟苯基)乙炔基]苯甲酸(4-烷氧基)苯酯和4-[(4-苯甲酸2

6-四氟苯基)乙基]苯甲酸(4-烷氧基)苯酯

前者由于将全氟苯环引入了二苯乙炔结构中

所以具有高双折射率和低的黏度

且耐热性好

可作为自适应光学系统空间光调制器液晶材料;后者引入亚乙基结构使分子的双折射率很小且黏度更低

可作为TFT-LCD混合液晶材料中的减黏部分。两个目标化合物分别是通过sonogashira交叉偶联反应和钯催化加氢还原反应获得。

Abstract

two kinds of fluorinated liquid crystal compounds were synthesized: 4-n-alkoxyphenyl 4-[4-n-alkoxyphenyl-2

6-tetrafluorophenyl) ethynyl] benzoates and 4-n-alkoxyphenyl 4-[4-n-alkoxyphenyl-2

6-tetrafluorophenyl) ethyl] benzoates.Due to introducing 1

4-perfluorophenylene to molecular structure of diphenyl acetylene in the first compounds

it could be used in adaptive system like as application in construction of spatial light modulator because of the high birfringence

low rotational viscosity and thermal stablility. The liquid crystal compounds with ethylidene bridge could satisfy the requirements of a low viscosity component in TFT-LCD because of the low birfringence and low viscosity. Two target compounds were synthesized by sonogashira reaction and then Pd/C catalytic hydrogenation.

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references

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Related Author

WEN Jian-xun

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Related Institution

Shanghai Tianwen Chemical Co. Ltd.

School of Chemistry Engineering, East China University of Science and Technology, Shanghai 200237, China

Shanghai Tianwen Chemical Corporation

Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University

Xi'an Modern Chemistry Research Institute

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