Synthesis of aryl azides and vinyl azides via proline-promoted CuI-catalyzed coupling reactionsElectronic supplementary information (ESI) available: experimental procedures. See http://www.rsc.org/suppdata/cc/b4/b400878b/

The coupling reaction of aryl halides or vinyl iodide with sodium azide under catalysis of CuI/L-proline works at relatively low temperature to provide aryl azides or vinyl azides in good to excellent yields.