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自行设计一条路线 ,以对羟基联苯和对羟基苯甲酸为原料 ,制备酯类液晶 4 (4′ 辛氧基联苯 4 甲酰氧基 )苯甲酸酯 ,各步反应收率较好 .最终产物经质谱与红外光谱确认正确 ,MH POBC的液晶相范围为 71.43～ 15 3.14℃ ,MBPOBC为 6 4.49～ 193.2 2℃ .
A route was designed to prepare esters of liquid crystal 4 (4 ’octoxybiphenyl 4 formyloxy) benzoate using hydroxybiphenyl and p-hydroxybenzoic acid as raw materials. The reaction yield was good in each step. The final product was confirmed by mass spectrometry and infrared spectroscopy. The phase range of MH POBC was 71.43 ~ 15 3.14 ℃, MBPOBC was 6 4.49 ~ 193.2 2 ℃.