An expedient synthesis of fused heteroacenes bearing a pyrrolo[3,2-b]pyrrole core

Two linear fused heteroacenes bearing a pyrrolo[3,2-b]pyrrole core have been synthesized via a novel reductive ring closure methodology in three steps and in good overall yield. Preliminary OFET results showed that dinaphtho[2,3-b:2′,3′-f]pyrrolo[3,2-b]pyrrole (DNPP) is a potential candidate for organic electronics.