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    • 11. 发明专利
    • Preparation of dinitrophenyl ethers
    • DININROPHENYL ETHERS的制备
    • JPS5962551A
    • 1984-04-10
    • JP17226582
    • 1982-09-30
    • Chisso CorpKaken Pharmaceut Co Ltd
    • OGAWA TETSUYASAITOU SHINICHIINOI TAKESHIKATOU MASAJIOBARA HEITAROU
    • C07C67/00C07C201/00C07C201/12C07C205/33C07C205/36C07C205/37C07C205/38
    • C07C201/12C07C205/36C07C205/37C07C205/38
    • PURPOSE: To obtain a dinitrophenyl ether easily in high yield without using a halide compound as an intermediate, by reacting dinitrophenyl methyl ether with a specific alcohol in the presence of an alkaline compound.
      CONSTITUTION: A compound shown by the formula I (one of R
      1 and R
      2 is nitro, and the other is H, 1W10C straight-chain, branched chain, or cyclic hydrocarbon) is reacted with a compound shown by the formula R
      3 OH (R
      3 is 2W10C straight- chanin, branched, cyclic hydrocarbon, 1W5C straight-chain hydrocarbon having one phenyl group as a substituent group, etc.) in the presence of an alkali compound (e.g., NaOH, KOH, pyridine, etc.) in a solvent such as benzene, hexane, etc. or in the absence of it at 60W180°C to give the desired compound shown by the formula II. The amount of the alkaline compound used as the catalyst is 1/2W1/10 based on the compound shown by the formula I , and equimolar amounts of the compound shown by the formula I and the compound shown by the formula R
      3 OH are used.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:在碱性化合物的存在下,通过使二硝基苯基甲基醚与特定的醇反应,以高产率获得二硝基苯醚,而不使用卤化物作为中间体。 构成:将式I化合物(R 1和R 2中的一个为硝基,另一个为H,1-10C直链,支链或环状烃)与式R 3 OH(R ​​3 是2-10C直链,支链,环烃,具有一个苯基作为取代基的1-5C直链烃等)在碱性化合物(例如NaOH,KOH,吡啶等)存在下 )在溶剂如苯,己烷等中,或在不存在下在60-180℃下反应,得到式II所示的所需化合物。 用作催化剂的碱性化合物的量基于式I所示的化合物为1 / 2-1 / 10,并且使用等摩尔量的式I所示的化合物和由式R3OH表示的化合物。
    • 16. 发明专利
    • Liquid crystal ester and liquid crystal composition
    • 液晶和液晶组合物
    • JPS6122051A
    • 1986-01-30
    • JP14269984
    • 1984-07-10
    • Chisso Corp
    • INUKAI TAKASHIFURUKAWA KENJITERAJIMA KENJISAITOU SHINICHI
    • C09K19/20C07C69/773C07C69/90C07C69/94C07C69/96C09K19/46G02F1/13G09F9/35
    • NEW MATERIAL:The compound of formula I (R
      1 is 1W18C alkyl; R
      2 is 2W15C alkyl; X is single bond, O, CO or group of formula IV W formula VI; * represents optically active carbon atom).
      EXAMPLE: 4'-Octyloxy-biphenylcarboxylic acid 4-(1-methylheptyl)phenyl ester.
      USE: A liquid crystal substance. It exhibits smectic A phase at a lower temperature range than isotropic liquid, and exhibits chiral smectic phase (SC* phase) at further low temperature range. It has high spontaneous polarization in SC* phase, and is useful for manufacturing a display element having low working voltage and high response. It has excellent compatibility with other liquid crystal compounds.
      PREPARATION: The compound of formula I can be prepared by reacting the 4'- substituted-4-biphenylcarboxylic acid halide of formula II with the optically active p-(1-methylalkyloxy)phenol of formula III in a basic solvent such as pyridine.
      COPYRIGHT: (C)1986,JPO&Japio
    • 新物质:式Ⅰ化合物(R1为1-18C烷基; R2为2-15C烷基; X为单键,O,CO或式Ⅳ基团,式Ⅵ; *为光学活性碳原子)。 实施例:4'-辛氧基 - 联苯基羧酸4-(1-甲基庚基)苯基酯。 用途:液晶物质。 它在比各向同性液体更低的温度范围内显示出近晶A相,并在更低的温度范围内显示手性近晶相(SC *相)。 它在SC *相中具有高自发极化,并且可用于制造具有低工作电压和高响应的显示元件。 它与其他液晶化合物具有优异的相容性。 制备:式Ⅰ化合物可以通过使式Ⅱ的4'-取代-4-联苯羧酸卤化物与式III的光学活性对 - (1-甲基烷氧基)苯酚在碱性溶剂如吡啶中反应来制备。