Ionic Liquid Promoted One-Pot Synthesis of Furo[2,3-d]pyrimidine-2,4(1H,3H)-diones
摘要:
The three-component condensation of aldehyde, N,N'-dimethylbarbituric acid and alkyl or aryl isocyanide afforded the corresponding furo[2,3-d]pyrimidine-2,4(1H,3H)-diones in 1-butyl-3-methylimidazolium bromide as an ionic liquid in high yields at room temperature within several minutes.