Domino Reactions of 1-Aroyl-3,4-dihydroisoquinolines with α,β-Unsaturated Aldehydes

An efficient synthesis of pyrrolo[2,1-a]isoquinolines by a domino reaction from a variety of 3,4-dihydropyrrolo[2,1-a]isoquinolines and α,β-unsaturated aldehydes in the absence of catalyst in good yields under microwave irradiation, is reported.