22.
    发明专利
    未知

    公开(公告)号:DE3320089A1

    公开(公告)日:1984-12-06

    申请号:DE3320089

    申请日:1983-06-03

    Applicant: BASF AG

    Abstract: Fluorophthalimides are prepared by a process in which a fluorophthalic anhydride is reacted, in the presence of an aliphatic sulfone, with from 0.4 to 0.8 mole of urea per mole of fluorophthalic anhydride, and the reaction is carried out first at 110 DEG -140 DEG C. and then at 150 DEG -170 DEG C.

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