Friedl?nder synthesis of poly-substituted quinolines in the presence of triethylammonium hydrogen sulfate Et3NHHSO4 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_3NHHSO _4 under solvent-free conditions in high yields.