potassium carbonate in acetone 30 h; Heating;

1: 78 percent / boron trifluoride-ether complex / 6 h / 70 - 80 °C 2: 81 percent / potassium iodide, potassium carbonate / acetone / 18 h / Heating 3: 82 percent / potassium carbonate / acetone / 30 h / Heating View Scheme

1: 81 percent / potassium iodide, potassium carbonate / acetone / 18 h / Heating 2: 82 percent / potassium carbonate / acetone / 30 h / Heating View Scheme

hydrogen; palladium on activated charcoal in ethanol Ambient temperature;