含氟丁烯类液晶是一类新型具有低熔点和较高清亮点的液晶材料.本文提出了一条新的方法合成关键中间体,采用以3-氟苄氯为起始原料,经Arbuzov、Wittig-Horner、催化氢化、锂化-硼酸化4步反应制备,避免了环己烷的异构化和脱氟副反应.经过合成优化,总收率由4.5％提高到30％,具备较高的应用价值.物理性能测试表明,该类化合物在配方中的虚拟清亮点达到127.7℃、展区常数K11值高达19.7.光电测试表明,该类化合物能够缩短10％的液晶总响应时间,与该类化合物粘弹系数小的特点相吻合.新型含氟丁烯液晶为开发高性能混合液晶提供了新的单体液晶材料.
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