2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same
申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP0339252A2
公开(公告)日:1989-11-02
A 2,5-disubstituted pyrazine derivaitve and a 2,5-disubstituted pyrimidine derivative of the formula (I):
wherein R¹ and R² each independently represents a straight chain or branched alkyl group containing 1 to 20 carbon atoms;
X represents a halogen atom; and
represents a pyrazine-2,5-diyl or a pyrimidine-2,5-diyl group;
each useful as an electrooptical display material are disclosed. Further a liquid crystal composition comprising said compounds as well as a ferroelectric display device wherein said liquid crystal composition is used are disclosed.
式(I)的 2,5-二取代吡嗪衍生物和 2,5-二取代嘧啶衍生物:
其中 R¹ 和 R² 各自独立地代表含有 1 至 20 个碳原子的直链或支链烷基;
X 代表卤素原子;和
代表吡嗪-2,5-二基或嘧啶-2,5-二基;
公开了每种可用作电光显示材料的物质。此外,还公开了包含上述化合物的液晶组合物以及使用上述液晶组合物的铁电显示装置。