1.1: magnesium chloride / tetrahydrofuran / 0.08 h / 20 °C 1.2: 18 h / 20 °C 2.1: hydrogenchloride / 1,4-dioxane; methanol; dichloromethane / 4 h / 20 °C 3.1: lithium aluminium tetrahydride / tetrahydrofuran / 5 h / Reflux 3.2: 0.5 h / 20 °C View Scheme

hydrogenchloride in 1,4-dioxane T=80°C; 1.5 h;

triethylamine in acetonitrile T=20°C; 4 h;

[2,2']bipyridinyl; copper(l) iodide in acetonitrile T=20°C; 12 h; Inert atmosphere;

triethanolamine in acetonitrile

1: sodium hypochlorite / 0 °C / |Inert atmosphere 2: copper(l) iodide; [2,2']bipyridinyl / acetonitrile / 12 h / 20 °C / |Inert atmosphere View Scheme