Catalysis Letters, Vol.122, No.3-4, 310-313, 2008
Chloroferrate(III) ionic liquid: Efficient and recyclable catalyst for solvent-free synthesis of 3,4-dihydropyrimidin-2(1H)-ones
A water-tolerant Lewis acidic ionic liquid, [bmim][FeCl4], was found to be an efficient and recyclable catalyst in the synthesis of 4-aryl-dihydropyrimidinones through Biginelli condensation. This method is capable of being scaled up, if desired.