Dimethylacetamide → 2,3,5,6-Tetrafluorobenzoic Acid

참여 물질

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반응 단계

N,N-Dimethylacetamide (14.0 parts) and 2,3,5,6-tetrafluoroterephthalic acid (2.91 parts) was heated at 70° C. for 4 hours before cooling to 20° C. adding water (7 parts) and cooling to 5° C. The precipitated solid was collected by filtration and washed with cold water and dried, the aqueous filtrates were evaporated under vacuum and the resultant solids combined to give 2,3,5,6-tetrafluorobenzoic acid (98%). 1,2,4,5-tetrafluorobenzene (2%) was also formed.

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