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12 条记录 (耗时 0.019 秒)

    Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same
    5.
    发明公开
    Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same 失效
    光学活性化合物含氟，用于制备，液晶混合物及含有它们的液晶元件。

    公开(公告)号：EP0667384A1

    公开(公告)日：1995-08-16

    申请号：EP95101941.3

    申请日：1995-02-13

    申请人： SUMITOMO CHEMICAL COMPANY LIMITED

    发明人： Higashii, Takayuki ,  Fujimoto, Yukari ,  Matsumoto, Tsutomu ,  Minai, Masayoshi ,  Sekine, Chizu ,  Endo, Kyoko ,  Fujisawa, Koichi

    IPC分类号： C09K19/04 ,  C09K19/34 ,  C07D235/00 ,  C07D239/26

    CPC分类号： C07D239/26 ,  C07D239/34 ,  C09K19/04 ,  C09K19/3463

    摘要： A fluorine-containing optically active compound represented by the formula (1):
    wherein R 1 is a saturated or unsaturated C 3 -C 20 alkyl group or a saturated or unsaturated C 3 -C 20 alkoxyalkyl group; A 1 , A 2 and A3 independently represent one of the following groups:


    provided that, when A 1 is a condensed ring group, the sum of p and q is 0 or 1 and A 2 and A3 are both monocyclic groups, or when A 1 is a monocyclic group, the sum of p and q is 1 or 2 with the proviso that when the sum of p and q is 2, A 2 and A3 are both monocyclic groups; X is -CH 2 CH 2 -, -CH=CH- or -C≡C-; W is a fluorine atom or a hydrogen atom; n is an integer of 1 to 10; m, p and q are each 0 or 1; u and w are each an integer of 0 to 3; and * indicates an asymmetric carbon atom, which is useful as a component of a liquid crystal mixture.

    摘要翻译： 由下式表示的含氟的光学活性的化合物（1）： worin - [R <1>是饱和或不饱和的C3-C20烷基基团或饱和的或不饱和的C3-C20烷氧基烷基; A <1>，A <2>和A <3>unabhängig代表一个下列基团：条件是，当A <1>是稠环基团，p的总和和q是0或1和 A <2>和A <3>均为单环基团，或当A <1>是单环基团，p的和q之和为1或2，其条件没有当p和q的总和为2，A <2>和A <3>是单环的两个组; X为-CH 2 CH 2，-CH = CH-或-C IDENTICAL C-; W是氟原子或氢原子; n为1〜10的整数; m，p和q各自是0或1; u和w各自为0至3的整数; 和*表示不对称碳原子上，所有这一切是作为液晶混合物的组分是有用的。

    Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof
    6.
    发明公开
    Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof 失效
    Verfahren zur Herstellung von 1-Bromalkylbenzolderivaten und Zwischenprodukte davon。

    公开(公告)号：EP0637580A1

    公开(公告)日：1995-02-08

    申请号：EP94112364.8

    申请日：1994-08-08

    申请人： SUMITOMO CHEMICAL COMPANY LIMITED

    发明人： Fujishima, Hiroaki ,  Miyamoto, Yasunobu ,  Minai, Masayoshi ,  Matsumoto, Tsutomu ,  Ushio, Hideki ,  Higashii, Takayuki

    IPC分类号： C07C22/04 ,  C07C17/08 ,  C07C15/44 ,  C07C1/32 ,  C07F3/02

    CPC分类号： C07C17/2632 ,  C07C15/44 ,  C07C17/08 ,  C07C17/087 ,  C07C41/22 ,  C07F3/02 ,  C07C22/04 ,  C07C43/225

    摘要： A 1-bromoalkylbenzene derivative is prepared by reacting a phenylalkene derivative with hydrogen bromide in the presence of a non-polar solvent. The phenylalkene derivative is prepared by reacting an alkenyl halide with metal magnesium to form a Grignard reagent, and then reacting the Grignard reagent with a benzyl halide derivative. An allyl Grignard reagent is prepared by reacting continuously an allyl halide derivative with metal magnesium in an organic solvent, in which the allyl halide derivative and metal magnesium are continuously added to the reaction system and the allyl Grignard reagent formed is continuously removed from the reaction system. The processes provide the intended compounds in high yields, high selectivities and high purities.

    摘要翻译： 通过在非极性溶剂的存在下使苯基烯烃衍生物与溴化氢反应来制备1-溴烷基苯衍生物。 苯基烯烃衍生物通过烯基卤化物与金属镁反应形成格氏试剂制备，然后使格利雅试剂与苄基卤衍生物反应。 通过使烯丙基卤衍生物与金属镁在有机溶剂中连续反应制备烯丙基格氏试剂，其中将烯丙基卤衍生物和金属镁连续加入到反应体系中，形成的烯丙基格氏试剂从反应体系中连续除去 。 该方法以高产率，高选择性和高纯度提供目标化合物。

    Liquid crystal mixture and liquid crystal device comprising the same
    10.
    发明公开
    Liquid crystal mixture and liquid crystal device comprising the same 失效
    Flüssigkristallmischungund eine diese enthaltendeFlüssigkristallvorrichtung

    公开(公告)号：EP0709444A1

    公开(公告)日：1996-05-01

    申请号：EP95115701.5

    申请日：1995-10-05

    申请人： SUMITOMO CHEMICAL COMPANY LIMITED

    发明人： Tsubata, Yoshiaki ,  Yamamoto, Kyoko ,  Fujisawa, Koichi ,  Fujimoto, Yukari ,  Matsumoto, Tsutomu ,  Minai, Masayoshi ,  Sekine, Chizu

    IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

    CPC分类号： C09K19/3001 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

    摘要： A liquid crystal mixture containing (a) at least one compound of a compound of the formula (1):

    in which R is a C₁-C₁₂ alkyl group, etc.; X₁, X₂, X₃, X₄, Y₁, Y₂, Y₃ and Y₄ represent, independently each other, CH, CF or N; A is a hydrogen atom, a 4-R₁-(cycloalkyl) group, etc. in which R₁ is a C₁-C₁₂ alkyl group, etc. and p is 0 or 1; and Z is -C≡C- or a single bond, and (b) at least one compound of the formula (4):

    wherein rings C, D, E and F represent, independently each other, 1,4-phenylene, etc. which may be substituted by 1, 2 or 3 fluorine atoms; R₂ is a hydrogen atom, a C₁-C₁₂ alkyl group, etc.; R₃ is a hydrogen atom, a fluorine atom, a fluoromethyl group, etc.; Z₁, Z₂ and Z₃ represent, independently each other, -COO-, -OCO-, -OCH₂-, -CH₂O-, a C₁-C₅ alkylene group, a C₂-C₅ alkenylene group, etc.; J and K
       represent, independently each other, a methylene group or -O-; a, b, c, d and e represent, independently each other, 0 or 1.

    摘要翻译： 一种液晶混合物，其含有（a）至少一种式（1）化合物的化合物：其中R是C1-C12烷基等的; X1，X2，X3，X4，Y1，Y2，Y3和Y4彼此独立地表示CH，CF或N; A是氢原子，其中R 1是C 1 -C 12烷基等的4-R 1（环烷基）等，p是0或1; 和（B）至少一种式（4）的化合物：其中环C，D，E和F彼此独立地表示1,4-亚苯基， 亚苯基等可被1,2或3个氟原子取代; R2是氢原子，C1-C12烷基等; R3是氢原子，氟原子，氟甲基等; Z1，Z2和Z3彼此独立地表示-COO-，-OCO-，-OCH2-，-CH2O-，C1-C5亚烷基，C2-C5亚烯基等; J和K彼此独立地表示亚甲基或-O-; a，b，c，d和e彼此独立地表示0或1。