【摘要】 本文报道了（２Ｓ、３Ｓ）—３—甲基—２—氯戊酸—４′，４″—庚氧基联苯酚酯（３Ｍ２ＣＰＨｐＯＢ）和（２Ｓ、３Ｓ）—３—甲基—２—氯戊酸—４′—４″壬氧基联苯酚酯（３Ｍ２ＣＰＮＯＢ）两种化合物的合成，测定了３Ｍ２ＣＰＮＯＢ的相变温度、液晶织构、电滞回线和自发极化率等物理性能。测试证明该化合物是一种相变温度接近于室温、高自发极化的铁电液晶。更多还原

【Abstract】 In this paper, Biphenyl was converted into 1,1′-biphenyl-4-carboxylic acid through acylation and halo form-reaction,the acid reacted with thionyl chloride, and then ammonified and dehydrated to get 1,1′-bipheny-4-carbon nitrile,which was nitrated,reducted and hydrated in turn to give 1,1′-biphenyl-4-hydroxyl-4′-carbon nitrile The overall yield is above 15% and it′s cost can be cut down by 15% than that obtained by starting from 1,1′-biphenyl-4-hydroxyl更多还原