A more efficient synthesis of 4,4′,4′′-tricarboxy-2,2′:6′,2′′-terpyridine

Abstract

We report in this paper a new route for the synthesis of 4,4′,4′′-tricarboxy-2,2′:6′,2′′-terpyridine. This synthetic pathway has a lower ecological impact with respect to yield, atom economy, solvent and chemicals used and wastes generated when compared to a previously reported method. In addition it uses furfural, which can be obtained from renewable sources. The title compound can be used to prepare complexes that are valuable for applications in Dye Sensitized Solar Cells.