Gallium(Ⅲ)Iodide-catalyzed Biginelli-type Reaction Under Solvent-free Conditions: Efficient Synthesis of Dihydro-pyrimidine-2(1H)-one Derivatives

摘要

The Bigineili-type condensation of ethyl acetoacetate/cycloketone,aldehyde and urea/thiourea under solvent-free condition catalyzed by 10% gallium(Ⅲ)iodide to form dihydropyrimidine-2(1H)-one derivatives was described.This process offered one way to constructing dihydropyrimidine-2(1H)-ones in good to excellent yields with simple procedure and short reaction time.