Process for producing tetrafluorophihalic acid
    2.
    发明公开
    Process for producing tetrafluorophihalic acid 失效
    Verfahren zur Herstellung vonTetrafluorphthalsäure。

    公开(公告)号:EP0259663A1

    公开(公告)日:1988-03-16

    申请号:EP87112002.8

    申请日:1987-08-18

    申请人: SDS Biotech K.K.

    IPC分类号: C07C63/68 C07C51/00

    摘要: A process for producing tetrafluorophthalic acid is disclosed, which comprises the steps of:

    (a) reacting an alkali metal fluoride and at least one imide compound represented by formula (I) or (II)
    wherein X¹, X², X³, and X⁴, which may be the same or different, each represents a chloride atom or a bromide atom, R¹ represents a monovalent organic group, and R² represents a divalent organic group, to provide an N-­substituted tetrafluorophthalimide; and
    (b) hydrolyzing the tetrafluorophthalimide in the presence of an acid.

    摘要翻译: 公开了制备四氟邻苯二甲酸的方法,其包括以下步骤:(a)使碱金属氟化物和至少一种由式(I)或(II)表示的酰亚胺化合物使X 1, 2>,X 3和X 4可以相同或不同,分别表示氯原子或溴原子,R 1表示一价有机基团,R 2表示二价 有机基团,提供N-取代的四氟邻苯二甲酰亚胺; 和(b)在酸存在下水解四氟邻苯二甲酰亚胺。 Ø