Aluminum(III) Halides Mediated Synthesis of 5‐Unsubstituted 3,4‐Dihydropyrimidin‐2(1H)‐ones via Three Component Biginelli‐Like Reaction.

5-Unsubstituted-3,4-dihydropyrimidin-2(1H)-ones have been synthesized in excellent yields in a aluminium(III) halides mediated three component cycloaddition of aldehyde, urea and enolizable ketone.