-3-1,2,5,6-Anthracenetetrone was used for condensation with aromatic ortho-diamines, a reaction first demonstrated by This reaction yields fully aromatic compounds by connecting the building blocks via pyrazine units. It has later been shown that the corresponding polycondensation with tetraamines yields fully conjugated ladder polymers. The polymers have not yet been tested in devices, but Bunz et al. recently optimized the condensation for larger ortho-diamines and tested the resulting compounds in organic lightemitting diodes. Regarding applications, environmentally benign methods for (poly)condensations, which afford highly crystalline materials, open up new opportunities. 1,4,5,8-Anthracenetetrone, on the other hand, was used as dienophile in double Diels-Alder cycloaddition reactions, whichdepending on the dienecan yield macrocyclic compounds, 21 substituted 5,7,12,14-pentacenetetrones, and pentacene precursors. The absorption and electrochemical properties of this tetrone, which is the most stable anthracenetetrone according to a computational study, were reported decades ago. In a more recent study, the binding of this tetrone on graphene was computationally predicted to be the strongest of several electroactive compounds for green battery electrodes. Such strong binding benefits the cycling performance of batteries.