申请人:Seiko Instruments Inc.
公开号:US04980082A1
公开(公告)日:1990-12-25
This invention relates to new optically active pyrimidinylphenyl ester compounds, having a liquid crystal phase of cholesteric and/or smectic C* phase, of the formula: ##STR1## wherein R* represents an optically-active alkyl group having an asymmetric carbon atom which is ##STR2## where R.sup.0 is a straight chain alkyl group of 2 to 6 carbon atoms, R.sup.1 is a straight chain alkyl group of 1 to 5 carbon atoms, R.sup.2 is a straight chain alkyl group of 1 to 2 carbon atoms, R.sup.3 is a straight chain alkyl group of 1 to 6 carbon atoms and n is 0 or 1, R presents a straight-chain alkyl group of 7 or 8 carbon atoms or a straight-chain alkoxy group of 7 or 8 carbon atoms and A represents ##STR3## or --O--.
这项发明涉及新的具有胆甾相和/或液晶相C*相的光学活性嘧啶基苯酯化合物,其化学式为:其中R*代表具有不对称碳原子的光学活性烷基基团,该碳原子为其中R^0是2到6个碳原子的直链烷基基团,R^1是1到5个碳原子的直链烷基基团,R^2是1到2个碳原子的直链烷基基团,R^3是1到6个碳原子的直链烷基基团,n为0或1,R表示7或8个碳原子的直链烷基基团或7或8个碳原子的直链烷氧基团,A代表或--O--。