SEARCH Articles Figures Tables Addition carbenes Carbene addition Carbene electrophile Carbene nucleophile Carbenes electrophilicity Complex Coupling Complexing additives Electrophile nucleophile Electrophiles carbenes Electrophilic carbene Electrophilic carbene complexes Electrophilic carbenes Electrophilic coupling Electrophilic coupling nucleophilic addition Electrophilicity nucleophilicity Nucleophiles complexes Nucleophiles electrophiles Nucleophilic carbenes Nucleophilic complexes Nucleophilic coupling