Journal of Fluorine Chemistry p. 241 - 246 (1988)
Update date:2022-08-16
Topics:
Dmowski, Wojciech
Wielgat, Jerzy
A high yield preparation of the title compound via treament of 4,5,6,7-tetrachloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran with potassium fluoride in sulpholane is described.Hydrolysis of octafluoro-1,3-dihydroisobenzofuran with concentrated sulphuric acid provides a new and efficient route to tetrafluoroterephthalic acid.
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