Zigzag-type aromatic hydrocarbon belts are long sought-after organic compounds because of their aesthetically appealing molecular nanostructures with curved -conjugation systems and tantalizing physical and chemical properties. They may serve as templates to grow single-walled zigzag carbon nanotubes with atomic precision, leading to the revolutionary applications of carbon nanotube materials. Due to the macrocyclic strain and probably the open-shell electronic configuration, fully -conjugated belt [n]arenes or cycloacenes remain as one of the most challenging targets in synthesis. Very recently, formation of a highly strained belt[8]arene C was observed from laser-promoted retro-Diels-Alder reactions of belt [8]arene-(DDQ)4 adduct B which is isolated from multiple oxidative aromatization of octahydrobelt [8]arene A and spontaneous Diels-Alder reactions in the presence of an excess amount of DDQ oxidant (Fig. ). Itami and Chi reported independently the construction of pyrene-fused zigzag hydrocarbon belts D and E (Fig. ) using a very similar repetitive Diels-Alder cycloaddition reaction and reductive aromatization process. The belt derivatives are stable closed-shell compounds owing to the presence of pyrene sub-structures. Fig. . Previous works on beltarenes and the current work on the design of Ndoped zigzag-type aromatic belts.