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    Difluoromethyl ether derivative and process for producing the same
    2.
    发明授权
    Difluoromethyl ether derivative and process for producing the same 有权
    二氟甲基醚衍生物及其制备方法

    公开(公告)号：US06605747B2

    公开(公告)日：2003-08-12

    申请号：US09925608

    申请日：2001-08-10

    申请人： Tomoyuki Kondo ,  Kouki Sagou ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    发明人： Tomoyuki Kondo ,  Kouki Sagou ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    IPC分类号： C07C4106

    CPC分类号： C09K19/3066 ,  C09K19/20 ,  C09K19/3402 ,  C09K19/3458 ,  C09K19/3469 ,  C09K19/3491 ,  C09K19/42 ,  C09K2019/0466 ,  C09K2019/3422 ,  Y10T428/10

    摘要： The present invention provides a difluoromethyl ether derivative which shows various suitable physical properties as a liquid crystal compound, a liquid crystal composition comprising the compound and a liquid crystal display element containing the composition, and also provides a simple and efficient process for producing the difluoromethyl ether derivative. According to the present invention, a process for producing a difluoromethyl ether derivative represented by Formula (1d): wherein the variables are defined in the specification, is characterized by using an &agr;&agr;-difluorocyclohexylidene derivative represented by Formula (1a): wherein R1, rings A1 and A2, Z1, Z2, k and l have the same meanings as defined in the specification, as a starting material.

    摘要翻译： 本发明提供一种二氟甲基醚衍生物，其显示出作为液晶化合物的各种合适的物理性质，包含该化合物的液晶组合物和含有该组合物的液晶显示元件，并且还提供了制备二氟甲基醚的简单有效的方法 衍生物。 根据本发明，由式（1d）表示的二氟甲基醚衍生物的制造方法，其特征在于，使用由式（1a）表示的αα-二氟亚环己基衍生物：其中，R1， A1和A2，Z1，Z2，k和l具有与说明书中定义的相同的含义作为起始材料。

    Substituted benzene derivative, liquid crystal composition, and liquid crystal display element
    4.
    发明授权
    Substituted benzene derivative, liquid crystal composition, and liquid crystal display element 有权
    取代苯衍生物，液晶组合物和液晶显示元件

    公开(公告)号：US06579577B2

    公开(公告)日：2003-06-17

    申请号：US09917271

    申请日：2001-07-30

    申请人： Tomoyuki Kondo ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    发明人： Tomoyuki Kondo ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    IPC分类号： C09K1912

    CPC分类号： C07C17/12 ,  C07C17/263 ,  C07C17/35 ,  C07C25/18 ,  C07C43/225 ,  C09K19/14 ,  C09K19/20 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  Y10T428/10

    摘要： There is provided a liquid crystalline compound having a high voltage holding ratio which has a very small degree of temperature dependence, a low threshold voltage which has a very small degree of temperature dependence, a high &Dgr;n, and excellent miscibility with other liquid crystal materials at low temperature; a liquid crystal composition; and a liquid crystal display element, and the liquid crystalline compound is a substituted benzene derivative represented by general formula (1), where, R represents a straight chain or branched alkyl group having 1 to 20 carbon atoms in which each of optional and nonadjacent methylene groups (—CH2—) may be substituted by an oxygen atom; X represents a halogen atom, —CF3, —CF2H, —CFH2, —OCF3 or —OCF2H; each of Z1 and Z2 independently represents —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2— or a covalent bond, but Z1 and Z2 are not covalent bonds simultaneously; each of Y1, Y2, Y3, Y4, Y5, and Y6 independently represents H or F, but at least one of Y1, Y2, Y3, and Y4 represents F.

    摘要翻译： 提供了具有非常小的温度依赖性的高电压保持率的液晶化合物，具有非常小的温度依赖性的低阈值电压，高DELTAn和与其它液晶材料的优异的混溶性 低温; 液晶组合物; 和液晶显示元件，液晶化合物是通式（1）表示的取代苯衍生物，其中，R表示碳原子数1〜20的直链或支链烷基，其中任选的和不相邻的亚甲基 基团（-CH 2 - ）可以被氧原子取代; X表示卤素原子，-CF 3，-CF 2 H，-CFH 2，-OCF 3或-OCF 2 H; Z 1和Z 2各自独立地表示 - （CH 2）2 - ， - （CH 2）4 - ， - CH 2 O-，-OCH 2 - 或共价键，但Z 1和Z 2不同时为共价键; Y1，Y2，Y3，Y4，Y5和Y6各自独立地表示H或F，但Y1，Y2，Y3和Y4中的至少一个表示F.

    Difluorovinyl compound, liquid crystal composition and liquid crystal display
    9.
    发明授权
    Difluorovinyl compound, liquid crystal composition and liquid crystal display 有权
    二氟乙烯基化合物，液晶组合物和液晶显示

    公开(公告)号：US06649227B2

    公开(公告)日：2003-11-18

    申请号：US09899169

    申请日：2001-07-06

    申请人： Takashi Kato ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    发明人： Takashi Kato ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    IPC分类号： C09K1934

    CPC分类号： C07C49/753 ,  C07C49/687 ,  C07C49/693 ,  C07C49/697 ,  C07D319/06 ,  C09K19/04 ,  C09K19/3402 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3422 ,  Y10T428/10

    摘要： Provided are liquid crystalline compounds having a wide liquid crystal phase temperature range, low viscosity, a large elastic constant ratio K33/K11 and excellent solubility at low temperature, a liquid crystal composition using the same and a liquid crystal display. Preferred compounds are difluorovinyl compounds represented by Formula (1): wherein Y1, represents H or a straight chain or branched alkyl group having 1 to 10 carbon atoms, and optional —CH2— in the above alkyl group may be replaced by —O— or —CH═CH—, but —O— is not adjacent to each other, and at least one H in Y1 may be substituted with halogen or a cyano group: A1, A2, A3 and A4 each independently represent 1,4-cyclohexylene in which optional —CH2— which is not adjacent to each other may be replaced by —O—, 1,4-phenylene in which optional H may be substituted with halogen, and a single bond, in which at least two of A1, A2, A3 and A4 have the ring structure described above, and at least one of them is 1,4-cyclohexylene in which —CH2— is replaced by —O—; Z1, Z2 and Z3 each independently represent a single bond, —(CH2)2—, —CH═CH—, —(CH2)4—, —O(CH2)3— or —(CH2)3O—; n represents 0 or an integer of 1 to 10, provided that when any of A1, A2, A3 and A4 is 1,4-phenylene, Z1, Z2 and Z3 are single bonds, and among them, when A1 is 1,3-dioxane-2,5-diyl and A2 is 1,4-phenylene and when A3 is 1,4-cyclohexylene and A4 is a single bond, Y1 is H, and n is not 0.

    摘要翻译： 本发明提供具有宽液晶相温度范围，低粘度，大弹性常数比K33 / K11和低温溶解度优异的液晶化合物，使用该液晶组合物的液晶组合物和液晶显示器。 优选的化合物是由式（1）表示的二氟乙烯基化合物：其中Y 1表示H或具有1至10个碳原子的直链或支链烷基，并且上述烷基中任选的-CH 2 - 可以被 - O-或-CH = CH-，但-O-不彼此相邻，并且Y 1中的至少一个H可以被卤素或氰基取代：A 1，A 2， A 3和A 4各自独立地表示1,4-亚环己基，其中不相邻的任选的-CH 2可以被-O-，1,4-亚苯基代替，其中任选的H可以被取代 具有卤素和单键，其中A 1，A 2，A 3和A 4中的至少两个具有上述环结构，并且它们中的至少一个为1,4 - 环己烯，其中-CH 2 - 被-O-取代; Z 1，Z 2和Z 3各自独立地表示单键， - （CH 2）2 - ， - CH = CH - ， - （CH 2）4 - ， - O（CH 2）3 - （CH2）3O-; n表示0或1〜10的整数，条件是当A 1，A 2，A 3和A 4中的任何一个为1,4-亚苯基时，Z 1，Z 2 且Z 3为单键，其中A 1为1,3-二恶烷-2,5-二基，A 2为1,4-亚苯基，当A 3为1时， ，4-环亚己基和A 4为单键，Y 1为H，n为0。