Pd(II)-Catalyzed intramolecular diarylation of alkynes via dual C-H activation: modular access to azafulvalene-based bis(polycyclic) aromatic enes

Key Points

• To investigate a Palladium(II)-catalyzed approach for the synthesis of azafulvalene-based bis(polycyclic) aromatic enes through intramolecular diarylation.
• Utilized Pd(II) as a catalyst for C-H activation.
• Converted alkynes through a dual activation mechanism.
• Synthesize compounds featuring heteroatoms in the aromatic structure.
• Successfully created bis(polycyclic) aromatic enes with enhanced electronic properties.
• Notable yields achieved in the diarylation process.
• Demonstrated tunable π-conjugation in the resultant azafulvalenes.