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    LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITION CONTAINING THE SAME, AND LIQUID-CRYSTAL DISPLAY ELEMENT CONTAINING THE SAME
    3.
    发明公开
    LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITION CONTAINING THE SAME, AND LIQUID-CRYSTAL DISPLAY ELEMENT CONTAINING THE SAME 失效
    的液晶化合物含液体制剂和含液晶显示元件

    公开(公告)号：EP0976703A1

    公开(公告)日：2000-02-02

    申请号：EP98900685.3

    申请日：1998-01-21

    申请人： CHISSO CORPORATION

    发明人： HASEBA, Yasuhiro ,  MATSUI, Shuichi ,  MIYAZAWA, Kazutoshi ,  HACHIYA, Norihisa ,  NAKAGAWA, Etsuo

    IPC分类号： C07C13/28 ,  C07C23/18 ,  C07D309/04 ,  C07D317/42 ,  C07D319/06 ,  C07D339/08 ,  C07D405/04 ,  C07D405/06 ,  C07D405/08 ,  C07D405/10 ,  C07D405/12 ,  C07D405/14 ,  C07D407/04 ,  C07D407/10 ,  C07D409/04 ,  C07D411/04 ,  C09K19/34 ,  C09K19/42 ,  G02F1/13

    CPC分类号： C09K19/3466 ,  C09K19/0403 ,  C09K19/3405 ,  C09K19/3444 ,  C09K19/3491 ,  C09K19/3494 ,  C09K2019/0407 ,  C09K2019/0414 ,  C09K2019/3422 ,  Y10T428/10

    摘要： There can be provided a liquid crystalline compound expressed by the general formula (1):
    wherein R represents a hydrogen atom, a cyano group, a halogen atom, a C 1 to C 20 alkyl group or a halogenated alkyl group, B1, B2, B3 and B4 are independently a covalent bond or a C 1 to C 4 alkylene group, n1, n2, n3, n4, m1, m2 and m3 are independently 0 or 1, rings A1, A2, A3 and A4 are independently a benzene ring in which one to four hydrogen atoms may be replaced by halogen atoms, bicyclo[1.1.1]pentane ring, bicyclo[2.1.1]hexane ring, bicyclo[2.2.1]heptane ring, bicyclo[2.2.2]octane ring, naphthalene ring, 1,2,3,4-tetrahydronaphthalene ring, perhydronaphthalene ring, fluorene ring, phenanthrene ring, 9,10-dihydrophenanthrene ring, indan ring, indene ring, pyridine ring, pyrimidine ring, C 4 to C 20 cycloalkane ring or cycloalkene ring,

    G represents any one of groups represented by the formulae (G1) to (G3):
    wherein Q 1 , Q 2 , Q 3 and Q 4 are independently a covalent bond, an oxygen atom, a sulfur atom, -CH 2 -, -CH 2 CH 2 -, -CH=CH-, -CO-, -CF=CF- or -CF 2 -, the number of covalent bonds is 2 or less, Q 1 and Q 4 are preferential, the oxygen atom and the sulfur atom are not adjacent to each other, Q 5 and Q 6 are independently =CH-, =CF- or =CCl-, Y 1 and Y 2 are independently a hydrogen atom, a halogen atom, a cyano group, a nitro group, an amino group, or a C 1 to C 20 alkyl group or halogenated alkyl group, as well as a liquid crystal composition comprising the same, and a liquid crystal display device fabricated by using the same, and these are used in various liquid crystal display devices including TFT type.

    摘要翻译： 可以提供由通式表示的液晶化合物（1）： worinřdarstellt氢原子，氰基，卤原子，C1-C20烷基或卤化烷基，B1，B2 ，B3和B4各自独立地为共价键或C1-C4亚烷基，N1，N2，N3，N4，M1，M2和M3独立地为0或1，环A1，A2，A3和A4独立地为在苯环 其中一至四个氢原子可被卤原子，bicycloÄ1.1.1Üpentane环，环bicycloÄ2.1.1Ühexane，bicycloÄ2.2.1Üheptane环，bicycloÄ2.2.2Üoctane环，萘环，1,2,3,4-四氢萘环被替换 ，全氢环，芴环，菲环，9,10-二氢菲环，茚满环，茚环，吡啶环，嘧啶环，C4至C20环烷烃环或环烯烃环，G darstellt（由式餐饮表示的基团中的任何一个G1 ）至（G3）： worin Q1，Q2，Q3和Q4unabhängig共价键，以氧 根原子，硫原子，-CH 2 - ，-CH 2 CH 2，CH = CH-，-CO - ， - CF = CF或-CF 2，共价键的数目为2或更少，Q1和Q4优先 中，氧原子和硫原子不相邻海誓山盟，Q5和Q6是unabhängig= CH-，= CF-或=四氯化碳，Y1和Y2unabhängig一个氢原子，卤原子，氰基， 硝基至氨基，或C1-C20烷基或卤代烷基基团，以及作为液晶组合物，其包括相同的，并且通过使用相同的制作的液晶显示装置，以及合成在各种液晶用于 显示装置，包括TFT型。

    PROCESSES FOR THE PREPARATION OF OCTAFLUORO- 2,2]PARACYCLOPHANE
    10.
    发明公开
    PROCESSES FOR THE PREPARATION OF OCTAFLUORO- 2,2]PARACYCLOPHANE 失效
    用于生产八氟2.2环芳

    公开(公告)号：EP1021389A1

    公开(公告)日：2000-07-26

    申请号：EP96936589.9

    申请日：1996-10-18

    申请人： SPECIALTY COATING SYSTEMS, INC.

    发明人： DOLBIER, William, R., Jr. ,  RONG, Xiao X.

    IPC分类号： C07C17/269 ,  C07C23/18

    CPC分类号： C07C17/269 ,  C07C23/18

    摘要： A process for the preparation of octafluoro-[2,2]paracyclophane includes contacting a reactant selected from the group consisting of 1,4-bis(bromodifluoromethyl)benzene (dibromide), 1,4-bis(chlorodifluoromethyl)benzene (dichloride), and 1,4-bis(iododifluoromethyl)benzene (diiodide) with trimethylsilyltributyltin (TMSTBT) (a reducing agent) and fluoride ions in a refluxing solution of hexamethylphosphoramide (HMPA) or dimethylsulfoxide (DMSO) in tetrahydrofuran (THF) at conditions effective to promote a reaction product comprising octafluoro-[2,2]paracyclophane.