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    • 7. 发明专利
    • Method for producing fluorine-containing organic compound
    • 生产含氟的有机化合物的方法
    • JP2005097158A
    • 2005-04-14
    • JP2003331917
    • 2003-09-24
    • Asahi Glass Co Ltd旭硝子株式会社
    • SHIMIZU TAMAKIFUJIMA TOSHIHIKOMORISAWA YOSHITOMI
    • C07C51/43C07C27/02C07C51/09C07C61/15
    • PROBLEM TO BE SOLVED: To provide a method for producing a fluorine-containing organic compound, by which the highly pure fluorine-containing organic compound having a geminal difluoro structure can efficiently be produced without needing a complicated separation operation.
      SOLUTION: This method for producing the fluorine-containing organic compound represented by general formula (3) is characterized by converting the ester sites of a mixture of a compound represented by general formula (1) (R
      1 is a 1 to 20C alkyl group, an alkyl group substituted with one or more aryl groups, an alkyl group substituted with one or more monovalent heterocyclic groups, a 3 to 8C cycloalkyl group, an aryl group, an aryl group substituted with one or more substituents, or a 1 to 20C fluoroalkyl group) and a compound represented by general formula (2) into the carboxy groups to obtain the mixture of the compound of formula (3) and the compound of formula (4), and then crystallizing the mixture.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 待解决的问题:提供一种含氟有机化合物的制造方法,通过该方法可以有效地制备具有偕二氟结构的高纯度的含氟有机化合物,而不需要复杂的分离操作。 解决方案:该通式(3)所示的含氟有机化合物的制造方法的特征在于将通式(1)表示的化合物的混合物的酯部位(R 1 SP 1) SP>为1〜20C的烷基,被1个以上的芳基取代的烷基,被1个以上的1价杂环基取代的烷基,3〜8个环烷基,芳基,被1个 或更多取代基或1〜20C氟代烷基)和通式(2)表示的化合物转化成羧基,得到式(3)的化合物和式(4)的化合物的混合物,然后结晶 混合物。 版权所有(C)2005,JPO&NCIPI