A set of 4′-substituted 2,2′:6′,2′′-terpyridines has been synthesized in a one-pot
procedure under environmentally friendly reaction conditions using PEG and aqueous
ammonia as solvents. This procedure features a short synthetic route, short reaction
times, easy work-up, and good yields in comparison to conventional methods. The crystallographic
data reveal the influence of the 4′-aryl substituent on the molecular structure and
π-stacking behavior of the respective terpyridines.
green chemistry - heterocycles - ligands - multicomponent reactions - terpyridines