Friedl?nder synthesis of poly-substituted quinolines in the presence of triethylammonium hydrogen sulfate [Et3NH][HSO4] as a highly efficient, and cost effective acidic ionic liquid catalyst

摘要

A rapid and an efficient method for the preparation of a variety of substituted quinolines has been developed through the reactions of o-aminoarylketones with carbonyl compounds containing a reactive α-methylene moiety in the presence of molten [Et_3NH][HSO _4] under solvent-free conditions in high yields.