苯基环己烷类液晶的合成和性能——Ⅱ.4-正烷基环己基苯甲酸酯和4-正烷基环己基苯酚羧酸酯  

Syntheses and Properties of Phenyl Cyclohexane Liquid Crystals Ⅱ. 4-(4-Alkylcyclohexyl) benzoates and 4-(4-Alkylcyclohexyl) phenolic Esters

作　　者：杨新浩 华曦[1] 李国镇[1] 

机构地区：[1]华东化工学院应用化学研究所

出　　处：《华东化工学院学报》1991年第6期730-738,共9页

基　　金：国家自然科学基金

摘　　要：采用同一原料——4-(4′正烷基环己基)苯乙酮,分别合成了4-(4′-正烷基环己基)苯甲酸(Ⅰ)和4-(4′-正烷基环己基)苯酚(Ⅱ),减少了反应步骤。再以Ⅰ和Ⅱ为原料,合成了12个正烷基环己基苯甲酸酯和五个正烷基环己基苯酚羧酸酯液晶。进行了红外光谱,元素分析和液晶相变温度的测定。讨论了不同取代基和分子结构对液晶相变温度的影响。By a simple synthetic mate, 4-(4'-alkylcyclohexyl) acetophenone was used as a raw material in the syntheses of 4-(4'-alkylcyclohexyl) benzoic acids (Ⅰ) or 4-(4'-alkylcyclohexyl) phenols (Ⅱ). With (Ⅰ) or (Ⅱ) as raw materials, twelve liquid crystals of 4-(4'-alkylcyclohexyl) benzoates and five liquid crystals of 4-(4'-alkylcyclohexyl) phenolic esters were synthesized. Their infrared spectrum, elemental analyses and tratisition temperatures were determined. The relationship between molecular structure and transition temperature was also discussed.

关 键 词：苯基环己烷 液晶 环己基 苯甲酸酯 

分 类 号：O624.11[理学—有机化学]