Synthesis and characterization of biphenyl liquid crystal based on natural molecules and 2(5H)-furanone moiety
作者:Shi-He Luo、Qun-Fang Wang、Zhao-Yang Wang、Pai Peng
DOI:10.1007/s11164-012-0777-5
日期:2013.7
Using 4′-hexyloxybiphenyl-4-ol and N -(5-alkoxy-3-bromo-2(5 H )-furanonyl) amino acids as reactants, a series of novel biphenyl liquid crystal compounds containing natural molecule moieties, such as menthol, borneol, and amino acids, were synthesized via esterification. The structures of all novel compounds were confirmed by FTIR, 1H NMR, 13C NMR, MS, and elemental analysis, and the liquid crystal
使用4'-己氧基联苯-4-醇和 N- (5-烷氧基-3-溴-2(5 H )-呋喃酮基)氨基酸作为反应物,一系列含有天然分子部分的新型联苯液晶化合物,例如薄荷醇,冰片和氨基酸是通过酯化合成的。所有新化合物的结构均通过FTIR,1 H NMR,13确证用DSC,XRD和POM表征目标化合物的13 C NMR,MS和元素分析,以及液晶性质。引入己氧基使联苯酯有可能出现在介晶相中并具有较高的Tm,并且冰片基部分比薄荷基单元更有利于液晶性能。多数化合物为同晶相液晶分子,POM和XRD表明它们存在于近晶相中。这些研究为利用2(5 H )-呋喃酮衍生物和天然分子合成联苯酯液晶材料提供了理论基础 。