THE REACTION OF β-DICARBONYL COMPOUNDS WITH TRIFLUOROMETHYL-SULPHENYL CHLORIDE. PART II. THE SYNTHESIS OF 3-SCF3 SUBSTITUTED 2- AND 4-QUINOLINONES.

Article abstract of DOI:10.1016/S0022-1139(00)83034-1

3-SCF3 substituted 4-methyl-2(1H)-, 4-phenyl-2(1H)-, 2-methyl-4(1H)-, and 2-phenyl-4(1H)-quinolinones were obtained by cyclization of the respective -SCF3 submitted acetoacetanilides or benzoylacetanilides or their β-phenylimino analogues in concentrated sulphuric acid upon heating.The structures of the compounds obtained were elucidated by elemental analysis and their IR, 1H and 19F NMR, and mass spectra.