A One-Pot Synthesis of Highly Functionalized Indolizines by 1,3-Dipolar Cycloaddition of Azomethine Ylides and Phosphorylated Hydroxyketenimines

Abstract

Alkyl 2-(alkylamino)-3-(quinolin-2-yl)indolizine-1-carboxylates were prepared by1,3-dipolar cycloaddition of azomethine ylides with phosphorylated hydroxyketenimines, generated <i>in situ</i> by a Nef isocyanide–Perkow cascade.