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    Fluorovinyl ether compound
    1.
    发明授权
    Fluorovinyl ether compound 有权

    公开(公告)号：US11932596B2

    公开(公告)日：2024-03-19

    申请号：US18091516

    申请日：2022-12-30

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Naoyuki Hoshiya ,  Akihiro Gotou ,  Yosuke Kishikawa

    IPC分类号： C07C43/176 ,  C07C41/16 ,  C07C43/17 ,  C07D209/48 ,  C07D211/22 ,  C07D213/30 ,  C07D317/22 ,  C07D333/16 ,  C07F7/18

    CPC分类号： C07C41/16 ,  C07C43/17 ,  C07C43/176 ,  C07D209/48 ,  C07D211/22 ,  C07D213/30 ,  C07D317/22 ,  C07D333/16 ,  C07F7/1804 ,  C07C41/16 ,  C07C43/176 ,  C07C41/16 ,  C07C43/17

    摘要： An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound. This problem is solved by a method for producing a compound represented by formula (1):




    wherein

    Ra1 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents,

    Rf is a fluoro group or a perfluoroalkyl group,

    Ra2 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents, or

    (i) Ra1 and Ra2, (ii) Ra1 and Rf, or (iii) Rf and Ra2 may be linked to each other,

    Rb1 is Rs,

    Rb2 is a hydrogen atom or Rs,

    Rb3 is a hydrogen atom or Rs, or

    two or three of Rb1, Rb2, and Rb3, taken together with the adjacent carbon atom, may form a ring optionally having one or more substituents, and

    Rs, in each occurrence, is the same or different and represents a hydrocarbon group optionally having one or more substituents, the method comprising

    step A of reacting a compound represented by formula (2):





    wherein

    Rx is a leaving group, and

    other symbols are as defined above,

    with a compound represented by formula (3):





    wherein the symbols in the formula are as defined above,

    in the presence of a transition metal catalyst.

    Liquid crystal composition, liquid crystal element, and liquid crystal display device
    10.
    发明授权
    Liquid crystal composition, liquid crystal element, and liquid crystal display device 有权
    液晶组合物，液晶元件和液晶显示装置

    公开(公告)号：US09039931B2

    公开(公告)日：2015-05-26

    申请号：US14149056

    申请日：2014-01-07

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Tomohiro Tamura ,  Yasuhiro Niikura ,  Tetsuji Ishitani ,  Sachiko Kawakami ,  Yuko Kawata

    IPC分类号： C09K19/54 ,  C09K19/58 ,  C07D317/22 ,  C09K19/02 ,  C09K19/34

    CPC分类号： C09K19/588 ,  C07D317/22 ,  C09K19/0275 ,  C09K19/3405 ,  C09K19/54 ,  G02F1/134309 ,  G02F1/1368 ,  Y10T428/10

    摘要： A liquid crystal composition including a dioxolane compound represented by the general formula (G1) as a chiral agent is provided. In the general formula (G1), R1 and R2 individually represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, and an alkyl group having 1 to 20 carbon atoms and having a phenyl group as a substituent; R1 and R2 may be bonded to each other to form a ring; R3 and R4 individually represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a cycloalkyl group; and R5 to R40 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms.

    摘要翻译： 提供了包含由通式（G1）表示的二氧戊环化合物作为手性试剂的液晶组合物。 在通式（G1）中，R 1和R 2分别表示氢，碳原子数1〜6的烷基，碳原子数1〜20的烷氧基，碳原子数6〜12的芳基，烷基 具有1至20个碳原子并具有苯基作为取代基的基团; R1和R2可以彼此键合形成环; R3和R4分别表示氢，碳原子数为1〜6的烷基和环烷基中的任一个， R 5〜R 40分别表示氢，碳原子数1〜4的烷基，碳原子数1〜4的烷氧基，碳原子数6〜12的芳基。