摘要
在三苯基膦钯的催化下 ,由 3 -氯 -6-甲氧基哒嗪与对烷氧苯基硼酸偶联合成了 7种具有液晶性的中心桥连基为哒嗪环、不同烷氧基长度的含有苯环的哒嗪衍生物 ,并通过 DSC和偏光显微镜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 。
Seven new 3-methoxy-6-(4-alkoxyphenyi)pyridazines which contain a benzene ring, an alkoxyl group of different length has been synthesized through the cross-coupling reaction of 3-halo-6-methoxypyridazines with 4-alkoxyphenylborate in the presence of palladium catalyst. Their mesogenic behaviors have been studied through DSC and optical microscope. The length of the terminal chain can affect the transition and clearing point temperatures of the compound, but has a little influence on the temperature range of mesophases.
出处
《合成化学》
CAS
CSCD
2003年第1期68-71,共4页
Chinese Journal of Synthetic Chemistry
基金
乐山师范学院基金资助项目
