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为了寻找烷基苯基环己基甲酸酯简便的合成方法，以４′－戊基联苯－４－甲酸为原料，经过选择性还原合成了顺式与反式４－（４′－戊基苯基）环己烷甲酸，讨论了顺式异构体转化为反式异构体的方法，用１３ＣＮＭＲ确定了它们的结构。合成了通式为Ｒ－Ｘ－Ｙ－ＣＯＯ－Ｚ－Ｒ′，Ｘ，Ｙ，Ｚ为苯基或者环己烷环，五个烷基苯基环己基甲酸酯。用ＩＲ，ＮＭＲ和ＭＳ确定了这些化合物的结构。用ＤＳＣ仪测定了它们的相变温度，由偏光显微镜确定了它们的相态，所有的化合物均具有液晶相。讨论了末端基团对化合物相变温度的影响。
In order to find a convenient synthesis method of alkyl phenyl cyclohexyl formate, 4’-pentylbiphenyl-4-carboxylic acid was used as the starting material to synthesize cis and trans 4- (4’-pentyl Phenyl) cyclohexanecarboxylic acid, the method for the conversion of the cis-isomer to the trans-isomer is discussed, and their structures were confirmed by13C NMR. Synthesis of the general formula is R-X-Y-COO-Z-R ’, X, Y, Z is a phenyl or cyclohexane ring, five alkyl phenyl cyclohexyl formate. The structures of these compounds were confirmed by IR, NMR and MS. Their phase transition temperatures were measured with a DSC instrument. Their phases were determined by a polarizing microscope, and all of the compounds had a liquid crystal phase. The effects of terminal groups on the phase transition temperature of compounds were discussed.