Selective Synthesis of Polyfunctionalized Pyrido[2,3-<i>b</i>]indoles by Multicomponent Domino Reactions

Abstract

A series of novel polyfunctionalized pyrido[2,3-b]indoles were synthesized by three- or four-component domino reactions under microwave irradiation. This protocol has the advantages of readily available starting materials, short reaction times, high yields, easy workup, and high chemo- and regioselectivities.