Catalysis Letters, Vol.115, No.1-2, 52-55, 2007
Ionic liquid promoted an improved synthesis of 3,4-dihydropyrimidinones using [bmim]BF4 immobilized Cu(II) acetylacetonate as recyclable catalytic system
An improved method for the synthesis of 3,4-dihydropyrimidinones by one pot cyclocondensation of aldehyde, beta-dicarbonyl compound and urea with significant enhancement in reaction rates using room temperature ionic liquid [bmim] BF4 immobilized Cu(acac)(2) as recyclable catalytic system is described.