1: diisobutylaluminium hydride / |Inert atmosphere; |Schlenk technique 2: iron tribromide / toluene / 14 h / 80 °C / |Sealed tube; |Schlenk technique; |Inert atmosphere View Scheme

copper(l) iodide; N-acetyl-glycine; potassium iodide; sodium hydroxide in tert-butyl alcohol T=100°C; 24 h;

Stage #1: With  diisobutylaluminium hydride in  hexane; dichloromethane T=-78°C;  Inert atmosphere; Stage #2: With  hydrogenchloride; water in  hexane; dichloromethane; ethyl acetate  Inert atmosphere;