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从左旋戊醇合成九种光活性(+)-对-烷氧基苯甲酸-对′-(2-甲基丁氧基)苯酯类化合物[(d)Am PAB,系列1]和九种光活性(+)-对-(2-甲基丁氧基)苯甲酸-对′-烷氧基苯酯类化合物[AP(d)AmB,系列2]。它们都是右旋体,具有比旋光度小,熔点低和稳定性好等性能。测定了这些化合物的相转变温度,并比较了结构与性能的关系。系列1中烷基从C_5H_(17)～C_(12)H_(25)五者为手性近晶C相液晶,具有铁电行为,系列2中C_(10)H_(21)～C_(12)H_(25)三者为互变胆甾相液晶。其中(d)AmPOB,(d)AmPUn B和(d)AmPDo B是三个新合成的铁电液晶。
Synthesis of nine photoactive (+) - p-alkoxybenzoic acid-p- (2-methylbutoxy) phenyl esters [(d) Am PAB, Series 1] and nine Photo-active (+) - p- (2-methylbutoxy) benzoic acid-p-alkoxyphenyl ester compounds [AP (d) AmB, Series 2]. They are all dextral, with specific rotation, low melting point and good stability and other properties. The phase transition temperatures of these compounds were measured and the relationship between structure and properties was also compared. In series 1, C 5 H 17 and C 12 H 25 were all chiral smectic C phase liquid crystals with ferroelectric behavior. In series 2, C_ (10) H_ (21) ~ C_ (12) ) H_ (25) three for the mutual change of cholesteric liquid crystal. Among them, (d) AmPOB, (d) AmPUn B and (d) AmPDo B are three newly synthesized ferroelectric liquid crystals.