申请人:MITSUBISHI RAYON CO., LTD.
公开号:EP0396410A3
公开(公告)日:1991-06-26
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 isand 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.
披露了一种光学活性化合物,其化学式为:其中R*代表(k = 1 - 14,X1为直接键或-0-,*C为一个不对称碳),R为直链烷基、光学活性单卤代烷基或带有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为H、卤素或氰基),m = 0或1,n = 1 - 14,Z1为-C02-或-CH20-,Z2为-CO2-、-CH2O-或-O-,但当式(2)中m = 0时,A3为,当Y为直接键且Z2为-0-时,式(2)中A3和A4的组合既不是也不是的组合。该化合物可用作铁电液晶或添加剂,用于与铁电液晶或非铁电液晶的SmC相结合。