Alpha-substituted-propionic acid esters
    9.
    发明公开
    Alpha-substituted-propionic acid esters 失效
    ALPHA-替代 - 丙酸酯

    公开(公告)号:EP0267758A3

    公开(公告)日:1989-10-18

    申请号:EP87309862.8

    申请日:1987-11-06

    IPC分类号: C09K19/12 C09K19/34 C09K19/08

    摘要: An optically active compound exhibiting high speed response properties when used as a component of liquid crystal materials used in a liquid crystal display mode utilizing ferroelectricity, and a liquid crystal compo­sition containing the compound are provided, which compund is expressed by the formula
    wherein R¹ represents alkyl, alkoxy or alkoxycarbonyl each of 2 to 18 C, R² represents alkyl of 3 to 18C or alkoxy of 1 to 18C and A represents a member selected from a group of two directly bonded six-membered rings having a halogen atom, cyano group, methyl group or trifluoromethyl group attached thereonto and * represents an unsymmetric carbon atom.