Synthesis of 1-Aminoimidazo[5,l-a]isoquinolinium Salts Based on Multicomponent Reactions of Isocyanides

摘要

A novel pseudo-four-component condensation yielding l-aminoimidazo[5,l-a]isoquinolinium salts from isocyanides,isoquinoline,and sulfonic or bromic acids is described.The method offers several advantages including high yields of products and an easy experimental workup procedure.