BN-Dibenzo[a,o]picenes: Analogues of an Unknown Polycyclic Aromatic Hydrocarbon

Reflecting on synthetic pinnacles: Whereas the parent hydrocarbon is not readily accessible, several examples of BN substituted‐dibenzo[a,o]picenes can be prepared in two steps from known starting materials. These non‐linear heptacene analogues are water‐stable materials. Their preparation utilizes a potentially general method for preparing extended BN analogues of difficult‐to‐synthesize polycyclic aromatic hydrocarbon frameworks.