申请人:MITSUBISHI RAYON COMPANY, LTD.
公开号:EP0409066A2
公开(公告)日:1991-01-23
Disclosed is an optically active compound represented by the formula:
wherein R1 and R2 are alkyl, alkenyl or alkoxyalkyl, which may be substituted by halogen, X and U are a direct bond, -0-, -COO- or -OCO-, Y and Z are a direct bond, -COO-, -OCO-, -CH20- or -OCH2-, A1 and A2 are phenylene, cyclohexylene or a phenylene-or cyclohexylene-containing group, p and q are 0 or 1, C* is an asymmetric carbon atom, with the proviso that when Z is a direct bond, q is 0, R2 is alkyl, Y is a direct bond, -OCO- or -OCH2-. The optically active compound is used as a ferroelectric liquid crystal or an additive to a ferroelectric or non-ferroelectric liquid crystal.
公开了一种光学活性化合物,由式表示:
其中 R1 和 R2 是可被卤素取代的烷基、烯基或烷氧基烷基,X 和 U 是直接键、-0-、-COO- 或 -OCO-,Y 和 Z 是直接键、-COO-、-OCO-、-CH20- 或 -OCH2-,A1 和 A2 是亚苯基、环己烯或含亚苯基或环己烯的基团,p 和 q 为 0 或 1,C* 为不对称碳原子,但当 Z 为直接键时,q 为 0,R2 为烷基,Y 为直接键、-OCO- 或 -OCH2-。光学活性化合物可用作铁电液晶或铁电或非铁电液晶的添加剂。