19F NMR spectroscopy of polyhalonaphthalenes. Part IV. Halex reactions of polychloroquinolines

Article abstract of DOI:10.1016/S0022-1139(98)00225-5

Nucleophilic fluoride dechlorination of four starting materials (5,6,7,8-tetrachloro-, 3,5,6,7,8-pentachloro-, 4,7-dichloro-, 2,3,4,5,6,7,8-heptachloro-quinoline) led to the preparation of thirteen new polychloropolyfluoroquinolines via reaction with caesium fluoride in DMSO at 100°C. The product from the perchloroquinoline was an inseparable mixture of C₉Cl₇__nF._nN where n is 1-3. These products were studied in the NMR tube.