C.W. Kruse G. C. Finger 1956 Replacement of -Cl by -F in aryl chlorides with potassium fluoride has been extended from 2,4-dinitrochlorobenzene to less activated halides by the use of non-aqueous solvents, especially dimethylformamide (DMF) and dimethyl sulfoxide (DMSO). Also replacement of -NO2 by -F in substituted nitrobenzenes was studied in DMF. As a direct result of this study, many aromatic fluorine compounds can now be obtained by a relatively simple synthetic route. application/pdf 10.1021/ja01604a022 en American Chemical Society Aromatic fluorine compounds. VII. Replacement of aromatic -Cl and -NO2 groups by -F article