3,4-二氟硫酚酯类液晶化合物的合成及性能

Synthesis and Properties of 3,4-Difluorothiophenol Ester Liquid Crystal Compounds

合成了一系列新的 3 ,4-二氟硫酚酯类液晶化合物 ,收率 64.2 %～ 74.9%。其结构经 IR和1 H NMR确认。并研究了合成过程中溶剂对酰化反应定位效应的影响。热性能测试表明 ,该类化合物液晶相变区间较宽并具有较高的清亮点。

A series of novel 3,4 difluorothiophenol ester compounds have been synthesized with yield from 64.2% to 74.9%. All of these compounds are identified by IR and 1H NMR. The effects of solution on the selectivity of acylation are also been studied. The results of thermal analysis show that these compounds have broad nematic phase range and high clearing point.