Abstract
Polycyclic heteroaromatic compounds are potentially interesting materials for organic electronic applications. While most of those compounds contain nitrogen or sulfur, oxygen‐based structures are much rarer, especially those including annulated pyrane rings. By the utilization of a cascade of Pictet–Spengler reactions and thermally induced ipso‐substitutions, a series of peri‐benzopyrano‐fused nitrogen containing polycyclic aromatic compounds was synthesized and their optoelectronic properties investigated by UV/Vis and emission spectroscopy as well as cyclic voltammetry and DFT‐calculations.
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