sodium hydrogencarbonate in ethanol 6 h; Heating / reflux;

indium trifluoromethanesulfonate; copper(l) iodide; oxygen in 1-methyl-pyrrolidin-2-one T=120°C; P=760.051 Torr; 48 h; Schlenk technique;

silver carbonate in 1,4-dioxane T=110°C; 10 h; Inert atmosphere;

anhydrous iron chloride in N,N-dimethyl-formamide T=80°C; Michael Addition; 2 h;

potassium carbonate in dichloromethane; N,N-dimethyl-formamide T=20°C; 12 h;

1: N,N-dimethyl-formamide With trichlorophosphate T=0 - 5°C; Vilsmeier-Haack Formylation; 2: 6-bromo-2-phenylimidazo[1,2-a]pyridine T=80°C; 6 h;

1,10-phenanthroline; caesium carbonate; copper(I) bromide T=110°C; 24 h;

1: 1,10-phenanthroline; caesium carbonate; copper(I) bromide / 24 h / 110 °C 2: copper / toluene / 1 h / Reflux 3: sodium tetrahydroborate / tetrahydrofuran; ethanol / Reflux 4: tetrachloromethane; sodium azide; triphenylphosphine / N,N-dimethyl-formamide / 6 h / 90 °C 5: palladium 10 on activated carbon; hydrogen / methanol / 20 °C 6: pyridine / dichloromethane / 3 h / 0 - 20 °C View Scheme