[bmIm]OH-catalyzed amidation of azides and aldehydes: an efficient route to amides

A [bmIm]OH-catalyzed amidation of azides and aldehydes is reported. This reaction is easily handled and proceeds under mild conditions. The overall transformation involves azide-enolate cycloaddition, which subsequently undergoes rearrangement to give amides. Importantly, the employment of ionic liquid makes this transformation green and practical.