Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Phenazines are synthesized by Cu-catalyzed homocoupling of 2-iodoanilines or 2-bromoanilines in water in moderate to excellent yields up to 85%. ... A simple, efficient, economical and environmentally friendly protocol for the synthesis of phenazines via Cu-catalyzed homocoupling of 2- ...