thionyl chloride 0.5 h; Heating;

1: 90 percent / H2 / 10percent Pd/C / ethanol / 2280 Torr 2: 77 percent / Br2 / acetic acid / 0.25 h / Ambient temperature 3: 97 percent / SOCl2 / 0.5 h / Heating View Scheme

1: 55 percent / K2CO3 / dimethylformamide / 4 h / 85 °C 2: 95 percent / 6 N NaOH / ethanol / 2 h / Heating 3: 77 percent / Br2 / acetic acid / 0.25 h / Ambient temperature 4: 97 percent / SOCl2 / 0.5 h / Heating View Scheme

1: 95 percent / 6 N NaOH / ethanol / 2 h / Heating 2: 77 percent / Br2 / acetic acid / 0.25 h / Ambient temperature 3: 97 percent / SOCl2 / 0.5 h / Heating View Scheme

1: 77 percent / Br2 / acetic acid / 0.25 h / Ambient temperature 2: 97 percent / SOCl2 / 0.5 h / Heating View Scheme

1: 55 percent / K2CO3 / dimethylformamide / 4 h / 85 °C 2: 95 percent / 6 N NaOH / ethanol / 2 h / Heating 3: 77 percent / Br2 / acetic acid / 0.25 h / Ambient temperature 4: 97 percent / SOCl2 / 0.5 h / Heating View Scheme