A Facile Synthesis of 4,5-Dihydropyrazolo[4,3-<i>c</i>]Quinolines with Vilsmeier Reagent

Abstract

4,5-Dihydropyrazolo[4,3- c]quinolines have been synthesised in moderate to good yields from dihydroquinolin-4-ones using the Vilsmeier reagent, under conventional and microwave irradiation conditions.