selenium; copper(l) iodide; 1,10-phenanthroline; potassium carbonate in N,N-dimethyl-formamide T=110°C; 24 h; Inert atmosphere;

1: 1.) n-BuLi / 1.) THF, RT, 2 h, 2.) THF, RT, 1 h 2: SOCl2 / 4 h / Heating 3: NaHCO3 / CH2Cl2 View Scheme

1: SOCl2 / 4 h / Heating 2: NaHCO3 / CH2Cl2 View Scheme

1: thionyl chloride / Reflux 2: dichloromethane / 13 h / 0 - 20 °C 3: copper(l) iodide; selenium; 1,10-phenanthroline; potassium carbonate / N,N-dimethyl-formamide / 24 h / 110 °C / Inert atmosphere View Scheme

1: dichloromethane / 13 h / 0 - 20 °C 2: copper(l) iodide; selenium; 1,10-phenanthroline; potassium carbonate / N,N-dimethyl-formamide / 24 h / 110 °C / Inert atmosphere View Scheme