2-[2,5-Dimeth­­oxy-4-(3-nitro­pyridin-2-yl)phen­yl]-3-nitro­pyridine

The title compound, C18H14N4O6, was prepared in a larger project on condensed heterocycles with a focus on the Cadogan reaction. Extension of this method to multiple Cadogan reactions was explored as a way to larger conjugated systems. A twofold Suzuki reaction on a central diboronic acid and chloronitropyridine gave the bis(3-nitropyridin-2-yl)benzene.