Domino reaction of anilines with 3,4-dihydro-2H-pyran catalyzed by cation-exchange resin in water: an efficient synthesis of 1,2,3,4-tetrahydroquinoline derivatives
Abstract
A highly efficient method for the synthesis of 1,2,3,4-tetrahydroquinoline derivatives by using a domino reaction of aromatic amines with 3,4-dihydro-2H-pyran over cation-exchange resin (H form) catalysts in water is described.