W. Dmowski, J. Wielgat
Nov 1, 1988
Citations
0
Influential Citations
6
Citations
Journal
Journal of Fluorine Chemistry
Abstract
Abstract A high yield preparation of the title compound via treatment 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.