Ring Expansion of Coordinated N,P -Heterocyclic Carbenes: Methylene and Imidogen Insertion

Key Points

• This research explores the formation of new nitrogen phosphorus heterocyclic carbene complexes through specific chemical insertions.
• Investigated azaphospholylidene complexes for C–C bond reactions
• Employed methylene and imidogen units for ring expansion
• Synthesized and characterized new NPHC complexes
• Successfully synthesized two new classes of 6-membered NPHC complexes
• Confirmed structures through spectral analysis
• Demonstrated that both methylene and imidogen can be inserted into azaphospholylidene complexes