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有机化学
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有机化学 ›› 2006, Vol. 26 ›› Issue (04): 487-490. 上一篇    下一篇

研究论文

含胆甾基、西佛碱的3,6-双取代哒嗪的合成和介晶性

熊俊如*，向清祥   

  1. (乐山师范学院化学与生命科学系 乐山 614004)
  • 收稿日期:2005-06-17 修回日期:2005-10-26 发布日期:2006-03-31
  • 通讯作者: 熊俊如

Synthesis and Mesomorphism of 3,6-Disubstituted Pyridazines Containing Cholesteryl and Schiff Base

XIONG Jun-Ru*,XIANG Qing-Xiang   

  1. (Department of Chemistry and Life Science, Leshan Teacher College, Leshan 614004)
  • Received:2005-06-17 Revised:2005-10-26 Published:2006-03-31
  • Contact: XIONG Jun-Ru

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合成了8个未见报道的中心桥连基为酯基、CH＝N基, 含有哒嗪环、胆甾基、二个苯环、不同末端链长度的双取代哒嗪化合物, 并通过示差扫描量热法(DSC)对其介晶性进行了表征. 研究表明, 末端链长度对相变温度和清亮点温度均有影响, 但对相变温度范围影响较小.

关键词: 哒嗪衍生物, 胆甾基, 交叉偶联, 介晶性

Eight new 3,6-disubstituted pyridazines, which contain cholesteryl, two benzene rings, an Schiff base, an ester function and an alkoxyl group of different length, have been synthesized and characterized. Their mesomorphism has been studied through differential scanning calorimetry. The length of the terminal chain can affect the transition and clearing point temperatures of the compounds, but has little influence on the temperature range of mesomorphous phases, which could depend on the length of the rigid core.

Key words: cholestryl, cross-coupling reaction, mesomorphism, pyridazine derivative