Metal-free 1,3-dipolar cyclization of azides with HFO-1233zd( E ) in the presence of amines: one-step regioselective synthesis of 1- N -substituted 1,2,3-triazole-4-carboxamide derivatives

A simple and metal-free strategy for the regioselective synthesis of 1- N -substituted 1,2,3-triazole-4-carboxamide derivatives was developed by employing azides, HFO-1233zd( E ) and amines in an aqueous reaction medium.