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    Method for producing biphenyl derivative
    3.
    发明授权
    Method for producing biphenyl derivative 有权
    联苯衍生物的制备方法

    公开(公告)号：US08722942B2

    公开(公告)日：2014-05-13

    申请号：US12377892

    申请日：2007-10-12

    Applicant: Tamio Hayashi ,  Jiro Nakatani

    Inventor： Tamio Hayashi ,  Jiro Nakatani

    IPC: C07C43/164 ,  C07C17/269 ,  C07C2/84 ,  C07C43/205 ,  C07C17/263

    CPC classification number: C07C43/2055 ,  C07B37/04 ,  C07B49/00 ,  C07C1/26 ,  C07C1/326 ,  C07C2/84 ,  C07C17/2632 ,  C07C15/14

    Abstract: A method produces a biphenyl derivative, with an industrially high yield and excellent productivity, by use of a raw material which is low in cost and toxicity. The method for producing the biphenyl derivative represented by Formula (1) is characterized in that a chlorine atom in a benzene derivative represented by Formula (2) reacts with magnesium metal to convert the benzene derivative into a Grignard reagent, and then the Grignard reagent is subjected to a coupling reaction in the presence of a catalyst and a dichloropropane: (wherein A represents at least one selected from alkyl groups, alkoxy groups, alkoxymethyl groups, a vinyl group, phenyl groups and chlorine, and n represents an integer of 1 to 4).

    Abstract translation: 通过使用低成本，低毒性的原料，能够得到工业上高产率，优异的生产率的联苯衍生物。 由式（1）表示的联苯衍生物的制造方法的特征在于，式（2）表示的苯衍生物中的氯原子与镁金属反应，将苯衍生物转化成格氏试剂，然后将格氏试剂 在催化剂和二氯丙烷的存在下进行偶联反应：（其中A表示选自烷基，烷氧基，烷氧基甲基，乙烯基，苯基和氯中的至少一种，n表示1〜 4）。

    Process for the preparation of substituted fluorenes
    5.
    发明申请
    Process for the preparation of substituted fluorenes 失效
    制备取代芴的方法

    公开(公告)号：US20070015946A1

    公开(公告)日：2007-01-18

    申请号：US11440276

    申请日：2006-06-29

    Applicant: Vladimir Marin ,  Abbas Razavi

    Inventor： Vladimir Marin ,  Abbas Razavi

    IPC: C07C2/70

    CPC classification number: C07C17/2632 ,  C07C1/26 ,  C07C1/28 ,  C07C1/321 ,  C07C1/325 ,  C07C17/12 ,  C07C17/32 ,  C07C2531/24 ,  C07C2603/18 ,  C08F110/02 ,  C08F110/06 ,  C07C13/567 ,  C07C25/18 ,  C07C25/22 ,  C07C22/04 ,  C08F2500/15 ,  C08F2500/16

    Abstract: Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. There is provided a 2,2′-dihalogen-diphenylmethylene having a methylene bridge connecting a pair of phenyl groups. Each phenyl group has a halogen on a proximal carbon atom relative to the methylene bridge. The halogenated diphenylmethylene is reacted with a coupling agent comprising a Group 2 or 12 transition metal in the presence of a nickel or palladium-based catalyst to remove the halogen atoms from the phenyl groups and couple the phenyl groups at the proximal carbon atoms to produce a fluorene ligand structure. The coupling agent may be zinc, cadmium or magnesium and the catalyst may be a monophosphene nickel complex. The halogenated diphenylmethylene may be an unsubstituted ligand structure or a monosubstituted or disubstituted ligand structure. The halogenated diphenylmethylene may be monosubstituted with a tertiary butyl group or may be a dialkyl diphenylmethylene having alkyl substituents at the directly distal positions of the phenyl groups relative to the methylene bridge.

    Abstract translation: 可用于茂金属型烯烃聚合催化剂中的芴基型配体结构和取代的芴基的制备方法。 提供了具有连接一对苯基的亚甲基桥的2,2'-二卤代 - 二苯基亚甲基。 每个苯基相对于亚甲基桥在近端碳原子上具有卤素。 卤化二苯基亚甲基与含有2或12族过渡金属的偶联剂在镍或钯基催化剂存在下反应，以从苯基除去卤素原子，并将近邻碳原子上的苯基偶联，生成 芴配体结构。 偶联剂可以是锌，镉或镁，催化剂可以是单磷酸镍络合物。 卤代二苯基亚甲基可以是未取代的配体结构或单取代或二取代的配体结构。 卤化二苯基亚甲基可以用叔丁基单取代，或者可以是在苯基相对于亚甲基桥的直接远端位置具有烷基取代基的二烷基二苯基亚甲基。

    Liquid crystal compounds with branched or cyclic end groups
    8.
    发明申请
    Liquid crystal compounds with branched or cyclic end groups 有权
    具有支链或环状端基的液晶化合物

    公开(公告)号：US20040206933A1

    公开(公告)日：2004-10-21

    申请号：US10489708

    申请日：2004-04-29

    Inventor： John W Goodby ,  Michael Hird ,  Kenneth J Toyne ,  Guirec Y Cosquer ,  Stephen J Cowling ,  Neil Gough

    IPC: C09K019/52

    CPC classification number: C09K19/30 ,  C07C17/2632 ,  C07C17/35 ,  C07C25/18 ,  C07D305/06 ,  C09K19/12 ,  C09K19/3001 ,  C09K2019/123 ,  C09K2019/3416 ,  C07C19/01

    Abstract: The use of a mesogenic compound having a terminal end chain comprising carbon, oxygen, or sulphur, which has at least one pendent C1-4alkyl, C1-4alkoxy or a cycloalkyl ring, arranged no more than 6 atoms from the end of the chain either decreasing the melting point, increasing the clearing point, increasing the speed of switching and/or increasing the tilt angle of a liquid crystal mixture. Examples of such compounds are of formula (I) where M is a mesogenic core group, and X and Y are terminal groups, provided that at least one group X or Y is a group of sub-formula (i) where Z1, Z2, R1, R2, R3, R4, R5, R6, R7, s, q, m and n are as defined in the specification. Novel compounds of formula (I) are also described and claimed. 1

    Abstract translation: 使用具有包含碳，氧或硫的末端链的介晶化合物，其具有至少一个侧链C 1-4烷基，C 1-4烷氧基或环烷基环，从链末端排列不超过6个原子 降低熔点，增加透明点，提高液晶混合物的切换速度和/或增加倾斜角度。 这样的化合物的实例是式（I），其中M是介晶核心基团，X和Y是末端基团，条件是至少一个基团X或Y是下式（i）的基团，其中Z 1， ，Z 2，R 1，R 2，R 3，R 4，R 5，R 6，R 7，s，q，m和n如说明书中所定义。 新的式（I）化合物也被描述和要求保护。

    Naphthalene derivative and liquid crystal composition comprising the same
    9.
    发明申请
    Naphthalene derivative and liquid crystal composition comprising the same 有权
    萘衍生物和包含它们的液晶组合物

    公开(公告)号：US20030136944A1

    公开(公告)日：2003-07-24

    申请号：US10224424

    申请日：2002-08-21

    Applicant: Dainippon Ink and Chemicals, Inc.

    Inventor： Sadao Takehara ,  Masashi Osawa ,  Haruyoshi Takatsu ,  Makoto Negishi

    IPC: C07C025/13 ,  C07C022/00 ,  C09K019/30 ,  C09K019/32

    CPC classification number: C07C17/2637 ,  C07C17/263 ,  C07C17/2632 ,  C07C17/2635 ,  C07C17/269 ,  C07C17/354 ,  C07C25/18 ,  C07C25/22 ,  C07C25/24 ,  C07C255/50 ,  C07C2601/14 ,  C07C2602/28 ,  C09K19/322 ,  Y10T428/10

    Abstract: Disclosed in a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such naphthalene derivatives and a liquid crystal display device comprising the same. The naphthalene derivative provided by the present invention exhibits an excellent liquid-crystallinity and miscibility with currently widely used liquid crystal compositions or compositions. The addition of the naphthalene derivative makes it possible to drastically lower the threshold voltage of the liquid crystal composition while maintaining its high response. The naphthalene derivative of the present invention is characterized by a large birefringence index. Further, most of the naphthalene derivative of the present invention has no strongly polar group in its molecule and thus can also be used for active matrix driving. Moreover, as shown in the foregoing examples, the naphthalene derivative of the present invention can be easily produced and is colorless and chemically stable. Accordingly, the liquid crystal composition comprising the naphthalene derivative of the present invention is extremely useful as a practical liquid crystal composition, particularly a liquid crystal composition which can operate within a wide temperature range and requires a high speed response and a low voltage driving.

    Abstract translation: 公开了一种新颖的液晶化合物，其是可用作电光液晶显示材料的萘衍生物，含有这样的萘衍生物的液晶组合物和包含该衍生物的液晶显示装置。 由本发明提供的萘衍生物与当前广泛使用的液晶组合物或组合物显示出优异的液晶性和混溶性。 通过加入萘衍生物可以使液晶组合物的阈值电压大大降低，同时保持其高响应性。 本发明的萘衍生物的特征在于双折射率大。 此外，本发明的大多数萘衍生物在其分子中没有强极性基团，因此也可用于有源矩阵驱动。 此外，如前述实施例所示，本发明的萘衍生物可以容易地制备，并且是无色和化学稳定的。 因此，含有本发明的萘衍生物的液晶组合物作为实用的液晶组合物，特别是能够在宽温度范围内工作并需要高速响应和低电压驱动的液晶组合物是非常有用的。

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