| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing tetrafluoroterephthalic acid difluoride and a tetrafluoroterephthalic acid diester compound. SOLUTION: This method for producing tetrafluoroterephthalic acid difluoride is provided by reacting tetrachloroterephthalic acid dichloride with potassium fluoride in the presence of dimethylsulfone. The method for producing tetrafluoroterephthalic acid diester expressed by formula (2) [wherein, R is a 1-6C alkyl] is provided by reacting the tetrafluoroterephthalic acid difluoride with an alcoholic compound expressed by formula (1) [wherein, R is the same as the above]. COPYRIGHT: (C)2007,JPO&INPIT
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