1: 1-benzylpiperidine-3-carboxylic acid With diphenylphosphoranyl azide; triethylamine in toluene 2 h; Heating / reflux; 2: tert-butyl alcohol 4 h; Heating / reflux;

[{(η5-C5Me5)IrCl}2(μ-Cl)2]; triethylammonium formate; potassium iodide in dichloromethane T=40°C; 24 h; Sealed tube;

Lanthanum nitrate hexahydrate T=20°C; 0.05 h;

1: acetonitrile / 0.25 h / 85 °C / |Reflux 2: [{(η5-C5Me5)IrCl}2(μ-Cl)2]; potassium iodide; triethylammonium formate / dichloromethane / 24 h / 40 °C / |Sealed tube View Scheme