1: sodiumiodideo / acetone / 36 h / Heating 2: dimethylformamide / 2 h / Ambient temperature 3: 75 percent / water / acetic acid; tetrahydrofuran; H2O / 2 h / 80 - 90 °C View Scheme

titanium tetrachloride; ethyl acetate in dichloromethane T=30°C; 0.166667 h;

sodium iodide in acetone 10 h; Reflux;

1: sodiumiodideo / acetone / 36 h / Heating 2: dimethylformamide / 2 h / Ambient temperature 3: 75 percent / water / acetic acid; tetrahydrofuran; H2O / 2 h / 80 - 90 °C 4: 57 percent / Jones reagent / acetone / 0.5 h / Ambient temperature View Scheme

FeCl2(TMS-SciOPP) T=80°C; 12 h;