有机化学 ›› 1989, Vol. 9 ›› Issue (6): 531-535. 上一篇    下一篇

研究论文

4',4"-(二苯并-18-冠-6)二甲酸二芳酯的合成和液晶性质

田宝芝;黄枢;王良御   

  1. 四川大学化学系;清华大学化学系
  • 发布日期:1989-12-25

Synthesis and liquid crystal properties of diaryl esters of 4',4"-(dibenzo-18-crown-6)dicarboxylic acids

TIAN BAOZHI;HUANG SHU;WANG LIANGYU   

  • Published:1989-12-25

本文为了探讨冠醚液晶化的途径及冠醚衍生物结构与液晶性能的关系, 参照二芳酯向列相液晶结构的特点, 用易得的二苯并-18-冠-6为起始原料, 合成了4',4"-(二苯并-18-冠-6)二甲酸二芳酯6, 6有顺式和反式两种异构体。层析分离得6A和6B, 本文考查了它们的液晶性质, 定性地检查了络合钾离子的性能, 用合成法确证了具有各向异性的6B为反式构型。

关键词: 液晶, 偏光显微镜, 冠式化合物, 醚, 苯 P, 构效关系, 羧酸酯, 示差扫描量热法, 异构体, 构型, 各向异性

The cis and trans forms of the compound I were prepared from dibenzo-18-crown-6. The trans form showed nematic characteristics with m.p. 227-228?with clearing point c.p. at 242?

Key words: LIQUID CRYSTAL, POLARIZING MICROSCOPES, CROWN ETHER COMPOUNDS, ETHER, BENZENE P, STRUCTURE ACTIVITY RELATIONSHIP, CARBOXYLIC ACID ESTER, DIFFERENTIAL SCANNING CALORIMETRY, ISOMER, CONFIGURATION, ANISOTROPY

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