摘要
以烯丙基溴,对羟基苯甲酸和对氰基苯酚为主要原料,通过Williamson和酯化反应合成了一种新型的具有反应活性的液晶基元——对烯丙氧基苯甲酸对氰基苯羟酯(1),产率60.1%,其结构经1H NMR和IR表征。DSC,热台偏光显微镜和X-射线衍射分析表明,1具有液晶性,介晶区间为81℃;在升温及降温过程中呈现出的扇形织构隶属于近晶C晶型,为互变双向性液晶基元。
A new liquid crystal monomer,p-hydroxybenzoic acid p-cyano phenol ester（1） in yield of 81%,was synthesized by Williamson reaction and esterification from allyl bromide,p-hydroxybenzoic acid and p-cyano phenol.The structure was characterized by 1H NMR and IR.DSC,polarizing microscope（with hot table） and X-ray diffraction analysis tests indicated that 1 exhibited interconversion liquid crystalline,and its mesomorphic temperature range and fan-shaped texture is 81 ℃ and smectic C while the temperature heating up and down.
出处
《合成化学》
CAS
CSCD
北大核心
2011年第6期714-717,共4页
Chinese Journal of Synthetic Chemistry
基金
陕西省教育厅科研计划资助项目(2010JK680)
西安科技大学培良基金资助项目(200815)
