Synthesis of 3,5-disubstituted 1,2,4-oxadiazoles and their behavior of liquid crystallines
作者:Jian Guo、Ruimao Hua、Yan Sui、Jianhua Cao
DOI:10.1016/j.tetlet.2014.01.066
日期:2014.2
The synthesis of 3,5-disubstituted 1,2,4-oxadiazoles by the cyclocondensation of amidoximes with trifluoroacetic anhydride or benzoic acid derivatives in moderate to high yields is described. The study on the phase transition behavior has disclosed that some of the synthesized oxadiazoles show smectic or nematic phases depending on their structures, which have the high potential application as liquid
描述了通过moderate胺肟与三氟乙酸酐或苯甲酸衍生物的环缩合以中等至高产率合成3,5-二取代的1,2,4-恶二唑。对相变行为的研究表明,某些合成的恶二唑根据其结构表现出近晶相或向列相,作为液晶单体具有很高的应用潜力。