μ-oxo-bis(chlorotriphenylbismuth); potassium carbonate in dichloromethane T=20°C; 5 h;

hydrogenchloride in methanol; water T=50 - 55°C; 3 h; Yield given;

1: 1.) potassium iodide, 2.) potassium carbonate / 1.) butanone, 18 h, 2.) butanone, reflux, 1.5 h 2: 93 percent / p-toluenesulfonic acid / benzene / 12 h / Heating 3: 66 percent / lithium tetrahydroaluminate / diethyl ether / 7 h / Heating 4: hydrochloric acid / methanol; H2O / 3 h / 50 - 55 °C View Scheme

1: 93 percent / p-toluenesulfonic acid / benzene / 12 h / Heating 2: 66 percent / lithium tetrahydroaluminate / diethyl ether / 7 h / Heating 3: hydrochloric acid / methanol; H2O / 3 h / 50 - 55 °C View Scheme

1: 66 percent / lithium tetrahydroaluminate / diethyl ether / 7 h / Heating 2: hydrochloric acid / methanol; H2O / 3 h / 50 - 55 °C View Scheme

in pyridine 1 h; Heating;