potassium carbonate in ethanol 1.5 h; Heating;

1: 87 percent / K2CO3 / acetone / 0.67 h / Heating 2: 90 percent / PPh3, CuI / PdCl2 / triethylamine; dimethylformamide / 0.8 h / 85 °C 3: 91 percent / K2CO3 / ethanol / 1.5 h / Heating View Scheme

1: 90 percent / PPh3, CuI / PdCl2 / triethylamine; dimethylformamide / 0.8 h / 85 °C 2: 91 percent / K2CO3 / ethanol / 1.5 h / Heating View Scheme

1: 60 percent / sodium iodide, 5percent aq. NaOCl / methanol / 1 h / 15 °C 2: 87 percent / K2CO3 / acetone / 0.67 h / Heating 3: 90 percent / PPh3, CuI / PdCl2 / triethylamine; dimethylformamide / 0.8 h / 85 °C 4: 91 percent / K2CO3 / ethanol / 1.5 h / Heating View Scheme

hydrogen bromide in dichloromethane 0.5 h; Ambient temperature;