sodium carbonate; caesium carbonate; potassium iodide in acetone 2 h; Heating;

1: 71 percent / CH2Cl2 / Ambient temperature 2: 56 percent / cesium carbonate, sodium carbonate, potassium iodide / acetone / 2 h / Heating View Scheme

1: 88 percent / triethylamine / tetrahydrofuran 2: 56 percent / cesium carbonate, sodium carbonate, potassium iodide / acetone / 2 h / Heating View Scheme