含西佛碱的3,6-双取代哒嗪的合成和介晶性  

Synthesis and mesomorphism of 3,6-disubstituted pyridazines containing schiff base

作　　者：张丽群[1] 熊俊如[1] 向清祥[1] 

机构地区：[1]乐山师范学院环境与生命科学系,四川乐山614004

出　　处：《化学研究与应用》2005年第4期488-492,共5页Chemical Research and Application

基　　金：四川省教育厅自然科学基金资助项目(2004A168);乐山市重点科研资助项目(04ZO043)

摘　　要：合成了8个中心桥连基为哒嗪环、酯基、CH=N基,含有胆甾基、三个苯环、不同未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小。Eight new 3,6-disubstituted pyridazines, which contain cholesteryl, three benzene rings, one Schiff base, two ester functions and one alkoxyl group of different length, were synthesized and characterized. Their mesomorphism was studied through differential scanning （DSC）. The length of the terminal chain could affect the phase transition and cleating point temperatures of the compounds, but had little influence on the temperature range of mesomorphous phases which depend on the length of the rigid core.

关 键 词：西佛碱 哒嗪衍生物 胆甾基 合成 介晶性 

分 类 号：O625.24[理学—有机化学]