9.
    发明专利
    未知

    公开(公告)号:DE3432565A1

    公开(公告)日:1986-03-13

    申请号:DE3432565

    申请日:1984-09-05

    Applicant: HOECHST AG

    Abstract: A process for the single-stage preparation of glycosyl fluorides by dissolving saccharides in liquid hydrogen fluoride and evaporating the hydrogen fluoride, wherein the resulting glycosyl fluoride is isolated in such a way that, when the evaporation of the hydrogen fluoride is started at a relatively high temperature, in general at -20 DEG to +20 DEG C., the evaporation is effected at a high evaporation rate or, when a low evaporation rate is used at the start of the evaporation, a sufficiently low temperature is set, in general -80 DEG C. to -30 DEG C.

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