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    • 1. 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。
    • 5. 发明专利
    • FR2533918B1
    • 1987-01-23
    • FR8315516
    • 1983-09-29
    • CHISSO CORP
    • OGAWA TETSUYASAITOH SHINICHIINOI TAKESHIKATO MASAJIOBARA HEITARO
    • C07C67/00C07C201/00C07C201/12C07C205/33C07C205/36C07C205/37C07C205/38C07C79/35C07C79/355
    • A process for the production of dinitrophenyl ethers having the general formula [III]: wherein, one of R1 and R2 is a nitro radical, and the other is a hydrogen atom or a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 1 to 10 carbon atoms, and R3 is a radical selected from the group consisting of (i) a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 2 to 10 carbon atoms, (ii) a straight-chain hydrocarbon radical having one phenyl group as a substituent and containing from 1 to 5 carbon atoms, (iii) a phenyl radical, and (iv) a phenyl radical with one or more than one substituents selected from the group consisting of a nitro group, a halogen group, a saturated or unsaturated hydrocarbon group containing from 1 to 5 carbon atoms and an alkoxy group containing from 1 to 4 carbon atoms, by reacting a compound represented by the formula [I]: [I] wherein, R1 and R2 have the above-mentioned meanings, and a compound represented by the general formula [II]: R3OH[II] wherein, R3 has the above-mentioned meaning, in the presence of an alkaline compound. This process has greater ease compared with the classical synthetic processes using a halogen compound intermediate.
    • 9. 发明专利
    • FR2533918A1
    • 1984-04-06
    • FR8315516
    • 1983-09-29
    • CHISSO CORP
    • OGAWA TETSUYASAITOH SHINICHIINOI TAKESHIKATO MASAJIOBARA HEITARO
    • C07C67/00C07C201/00C07C201/12C07C205/33C07C205/36C07C205/37C07C205/38C07C79/35C07C79/355
    • A process for the production of dinitrophenyl ethers having the general formula [III]: wherein, one of R1 and R2 is a nitro radical, and the other is a hydrogen atom or a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 1 to 10 carbon atoms, and R3 is a radical selected from the group consisting of (i) a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 2 to 10 carbon atoms, (ii) a straight-chain hydrocarbon radical having one phenyl group as a substituent and containing from 1 to 5 carbon atoms, (iii) a phenyl radical, and (iv) a phenyl radical with one or more than one substituents selected from the group consisting of a nitro group, a halogen group, a saturated or unsaturated hydrocarbon group containing from 1 to 5 carbon atoms and an alkoxy group containing from 1 to 4 carbon atoms, by reacting a compound represented by the formula [I]: [I] wherein, R1 and R2 have the above-mentioned meanings, and a compound represented by the general formula [II]: R3OH[II] wherein, R3 has the above-mentioned meaning, in the presence of an alkaline compound. This process has greater ease compared with the classical synthetic processes using a halogen compound intermediate.