1.1: 2,6-dimethylpyridine; trimethylsilyl trifluoromethanesulfonate / dichloromethane / 1 h / 20 °C / |Inert atmosphere 1.2: 0.5 h / 20 °C / |Inert atmosphere 2.1: tetrakis(triphenylphosphine) palladium(0); cesium fluoride; copper(l) iodide / N,N-dimethyl-formamide / 16 h / 20 °C / |Inert atmosphere View Scheme

1.1: n-butyllithium / diethyl ether / 2 h / -78 °C 1.2: 3 h / -78 °C 2.1: C37H51ClFeNPPd; copper(l) iodide; cesium fluoride / N,N-dimethyl-formamide / 12 h / 80 °C / |Inert atmosphere View Scheme

1: aqueous hydrochloric acid; sodium nitrite; sodium azide 2: decalin / 180 °C View Scheme

1: aqueous HCl; Ni(CN)2; H2O / Diazotization 2: ethanolic KOH View Scheme

1: aqueous HCl; Ni(CN)2; H2O / Diazotization 2: ethanolic KOH 3: methanol; concentrated H2SO4 4: N2H4+H2O 5: pyridine 6: sodium carbonate; ethylene glycol View Scheme

1: aqueous hydrochloric acid; sodium nitrite; sodium azide 2: decalin / 180 °C View Scheme

lithium triethylborohydride in tetrahydrofuran T=20 - 25°C; 18 h;

1.1: acetic acid; sodium nitrite / water / 1.5 h / 0 °C / Inert atmosphere 1.2: 0 - 20 °C / Inert atmosphere 2.1: dichloromethane / 20 °C / Inert atmosphere 3.1: ruthenium(III) chloride polyhydrate / isopropanol acetate / 15 h / 80 °C / Inert atmosphere 4.1: sodium tetrahydroborate / methanol; water / 20 - 100 °C / Inert atmosphere View Scheme