1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / N,N-dimethyl-formamide / 0.83 h / 20 °C / Inert atmosphere 1.2: 5 h / 20 °C / Inert atmosphere 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / N,N-dimethyl-formamide / 0.58 h / 20 °C / Inert atmosphere 2.2: 20 °C / Inert atmosphere View Scheme

silver; sodium hydrogencarbonate; sodium iodide; zinc in ethylene glycol dimethyl ether; dimethyl sulfoxide T=80°C; 6 h;

pyridine; AlCl3, aluminium chloride in dichloromethane T=50°C; 16.3333 h; Inert atmosphereReflux;