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    Novel lactic acid derivatives and liquid crystal compositions containing the same
    5.
    发明公开
    Novel lactic acid derivatives and liquid crystal compositions containing the same 失效
    MilchsäurederivatundFlüssigkristallzusammensetzungmit diesem Derivat。

    公开(公告)号：EP0329153A2

    公开(公告)日：1989-08-23

    申请号：EP89102756.7

    申请日：1989-02-17

    申请人： DAINIPPON INK AND CHEMICALS, INC. ,  KAWAMURA INSTITUTE OF CHEMICAL RESEARCH

    发明人： Takehara, Sadao ,  Shoji, Tadao ,  Ogawa, Hiroshi ,  Fujisawa, Toru ,  Osawa, Masashi

    IPC分类号： C09K19/12 ,  C09K19/20 ,  C07C69/90 ,  C07C69/732

    CPC分类号： C09K19/126 ,  C09K19/2021

    摘要： compound represented by formula (I):
    wherein R 1 represents an alkyl group having from 1 to 18 carbon atoms; R 2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond,
    m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C * and C" each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC * phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response.

    摘要翻译： 由式（I）表示的化合物：其中R 1表示具有1至18个碳原子的烷基; R2表示具有2至16个碳原子的烷基; 环A，B，C和D各自表示具有一个或两个卤素原子的1,4-亚苯基或1,4-亚苯基; Y表示单键， - @ -O-或-O- m和n各自表示0或1; p表示0,1或2; q表示0或1至6的整数; 和C *和C **分别表示（S） - 或（R） - 构型中的不对称碳原子，和含有式（I）化合物的液晶组合物。 式（I）化合物是在包括室温，令人满意的取向和高反应率的宽温度范围内表现出大的自发极化，长螺距，SC *相的手性液晶化合物。

    Optically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal composition
    9.
    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

    申请人： DAINIPPON INK AND CHEMICALS, INC. ,  SAGAMI CHEMICAL RESEARCH CENTER

    发明人： Takehara, Sadao ,  Kuriyama, Takeshi ,  Osawa, Masashi ,  Fujisawa, Toru ,  Nakamura, Kayoko ,  Hiyama, Tamejiro ,  Kusumoto, Tetsuo ,  Nakayama, Akiko

    IPC分类号： C07C255/46 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

    CPC分类号： C07D239/26 ,  C07C255/37 ,  C07C255/46 ,  C07C2601/02 ,  C07C2601/14 ,  C09K19/20 ,  C09K19/2021 ,  C09K19/3068 ,  C09K19/3463

    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。