申请人:MITSUBISHI RAYON CO., LTD.
公开号:EP0396410A2
公开(公告)日:1990-11-07
Disclosed is an optically active compound represented by the formula:
or
.wherein R* represents
(k = 1 - 14, X1 is direct bond or -0-, *C is an asymmetric carbon), R is linear alkyl, optically active monohalogenoalkyl or optically active alkyl with CH3 branch, X is direct bond, -0-, -C02- or -OCO-, Y is direct bond, -OCO-, -C02-, -CH20- or -OCH2-, A1 and
(B is H, halo or cyano), m = 0 or 1, n = 1 - 14, Z1 is -C02- or -CH20-, and Z2 is -CO2-, -CH2O- or -O-, with the proviso that when m = 0 in formula (2), A3 is
and when Y is direct bond and Z2 is -0- in formula (2), combination of A3 and A4 is neither combination of
nor combination of
This compound is used as a ferroelectric liquid crystal or an additive to be incorporated with a ferroelectric liquid crystal or a non-ferroelectric liquid crystal of SmC phase.
本发明公开了一种光学活性化合物,其分子式为
或
其中 R* 代表
(k=1-14,X1为直接键或-0-,*C为不对称碳),R为直链烷基、光学活性单卤代烷基或具有CH3支链的光学活性烷基,X为直接键、-0-、-C02-或-OCO-,Y为直接键、-OCO-、-C02-、-CH20-或-OCH2-,A1和...
(B 是 H、卤代或氰基),m = 0 或 1,n = 1 - 14,Z1 是 -C02- 或 -CH20-,Z2 是 -CO2-、-CH2O- 或 -O-,但当式(2)中 m = 0 时,A3 是
而当式(2)中 Y 为直接键且 Z2 为-0-时,A3 和 A4 的组合既不是-C02-、-CH20-或-O-的组合,也不是-C02-、-CH2O-或-O-的组合。
的组合,也不是
该化合物可用作铁电液晶或添加剂,与 SmC 相的铁电液晶或非铁电液晶结合使用。