silver hexafluoroantimonate; [Cu(N,N′-bis(2,6-diisopropylphenyl)-imidazol-2-ylidene)Cl] in toluene T=80°C; 0.33 h; Inert atmosphere; Reagent/catalystTime;

potassium tert-butylate in 1-methyl-pyrrolidin-2-one T=170°C; 0.5 h; Microwave irradiation;

potassium tert-butylate in 1-methyl-pyrrolidin-2-one T=210°C; 1 h; Microwave irradiation;

1: copper(l) iodide / dimethyl sulfoxide / 48 h / 30 °C / |Inert atmosphere 2: [Cu(N,N′-bis(2,6-diisopropylphenyl)-imidazol-2-ylidene)Cl]; silver hexafluoroantimonate / toluene / 0.33 h / 80 °C / |Inert atmosphere View Scheme

ammonia; sodium Irradiation;

n-butyllithium 1.) ether, hexane, 2.) ether, hexane, 10 min; Yield given. Multistep reaction;