Front Cover: Polyazaacene and Cyclazaacene Precursors Synthesized by Dehydration Condensation from a Versatile Bis‐
α
‐diketone Unit Having an Anthracene Skeleton (Eur. J. Org. Chem. 44/2022) (Front Cover: Polyazaacene and Cyclazaacene Precursors Synthesized by Dehydration Condensation from a Versatile Bis‐ α ‐diketone Unit Having an Anthracene Skeleton (Eur. J. Org. Chem. 44/2022))