Optically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal composition
    4.
    发明公开
    Optically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal composition 失效
    光学活性化合物,其中间体,用于制备的中间体和液晶组合物的方法。

    公开(公告)号:EP0438754A1

    公开(公告)日:1991-07-31

    申请号:EP90125085.2

    申请日:1990-12-21

    摘要: The present invention discloses an optically active compound represented by the following general formula (I):

    wherein R¹ represents an alkyl, alkoxyl, or alkoxyalkanoyloxy group which has 1 to 18 carbon atoms and may be substituted with fluorine, chlorine, or cyano group; R² represents an alkyl group having 1 to 18 carbon atoms;

    m is 0 or 1; Y represents a single bond, -CH₂O-, or -COO-; Z represents a single bond or -COO-; and C * and C ** each independently represents an asymmetric carbon atom of the (R) or (S) configuration, an intermediate therefor being represented by the following general formula (II):

    wherein R² represents an alkyl group having 1 to 18 carbon atoms, n is 0 or 1, and C * and C ** each independently represents an asymmetric carbon atom of the (R) or (S) configuration, a process for producing the intermediate, and a liquid-crystal compound using the optically active compound.

    摘要翻译: 本发明光盘上的由下述通式(I)表示的光学活性化合物松散: worin - [R <1> darstellt烷基,烷氧基,或alkoxyalkanoyloxy基团,其具有1至18个碳原子和可以被氟,氯被substituiertem的 或氰基; [R <2>具有1至18个碳原子烷基的darstellt; m是0或1; Y表示单键,-CH 2 O-,或-COO-; Z表示单键或-COO-; 和C <*>和C <**>每个unabhängigdarstellt到(R)的不对称碳原子或(S)构型,在中间为此由以下一般式表示(II): worinř<2 >具有1至18个碳原子烷基的darstellt,n是0或1,和C <*>和C <**>每个unabhängigdarstellt到(R)的不对称碳原子或(S)构型,用于处理 制备中间体,以及使用该光学活性化合物的液晶化合物。