A one-pot, metal-free synthesis of nitrogen-containing polycyclic aromatic heterocycles is reported by using a sequence of imine condensation, nucleophilic aromatic substitution and intramolecular Friedel–Crafts reactions. Subsequently, in situ crystallization using precipitation under high pressure yields a series of substituted and unsubstituted 5,11,17-triazatrinaphthylene compounds.
- Kalipada Koner
- Rahul Banerjee
