Mesomorphic compound having beta-hydroxycarboxyl group as chiral source and liquid crystal composition
申请人:MITSUBISHI RAYON CO., LTD.
公开号:EP0321984A1
公开(公告)日:1989-06-28
Disclosed is a mesomorphic compound having a β-hydroxycarboxyl group as the chiral source, which is represented by the formula:
wherein m and n are integers of from 1 to 18, X1 and X2 independently represent fluorine, chlorine or hydrogen, Y represents
or -O-, Z represents a direct bond,
-CH20, or -OCH2-, and * indicates the asymmetric carbon atom. The mesomorphic compound is valuable as a ferroelectric liquid crystal or an additive to a ferroelectric liquid crystal or to a compound showing the SmC phase and having no chiral group.
本发明公开了一种以β-羟基羧基为手性源的中间体化合物,其结构如式所示:
其中 m 和 n 是 1 至 18 的整数,X1 和 X2 独立地代表氟、氯或氢,Y 代表
或-O-,Z 代表直接键、
-CH20,或 -OCH2-,* 表示不对称碳原子。介形化合物作为铁电液晶或铁电液晶添加剂或显示 SmC 相且无手性基团的化合物非常有价值。