P۲O۵/Al۲O۳ as an effieient catalyst for one-pot synthesis ofpolyhydroquinoline derivatives under solvent-free conditions

The condensation of aromatic aldehydes, dimedone, ethylacetoacetate and ammonium acetate promoted by wasPhosphorus pentoxide supported on alumina carried out under solvent-free conditions to afford correspondingpolyhydroquinoline derivatives. This method provides several advantages including high yields, low reactiontimes, easy work up and little catalyst loading.

کلیدواژه ها:

Polyhydroquinoline ، Solvent-free ، Multicomponent reactions ، Phosphorus pentoxide supported onalumina