Microwave-Assisted Metal-Free Synthesis of 2,8-Diaryl-6-aminoimidazo-[1,2-a]pyridine via Amine-Triggered Benzannulation

Abstract

An efficient microwave-assisted metal-free amino benzannulation of aryl(4-aryl-1-(prop-2-ynyl)-1<i>H</i>-imidazol-2-yl)methanone with dialkylamines afforded a variety of 2,8-diaryl-6-aminoimidazo[1,2-<i>a</i>]pyridine in moderate to excellent yield.