[(2,5-diisopropyl-3,4-dimethylimidazol-1-ylidene)Fe(μ2-N(2,6-diisopropylphenyl))2Fe-(2,5-diisopropyl-3,4-dimethylimidazol-1-ylidene)] in tetrahydrofuran T=20°C; 48 h;

lithium sodium; ammonia; lithium 1.) ether 50 min 2.) -78 deg C - room temp. 55 min 3.) 10 min; Yield given. Multistep reaction;