N-bromosuccinmide; azobisisobutyronitrile in tetrachloromethane 1.5 h; Heating;

1: triethylamine / acetonitrile / 5 h / 20 °C / Cooling with ice 2: hydrogenchloride / water; methanol / 4 h / 20 - 50 °C 3: N,N-dimethyl-aniline / toluene / 7 h / 20 °C / Cooling with ice; Reflux 4: dibenzoyl peroxide; N-bromosuccinmide / tetrachloromethane / 6 h / 77 °C View Scheme

1: N,N-dimethyl-aniline / toluene / 7 h / 20 °C / Cooling with ice; Reflux 2: dibenzoyl peroxide; N-bromosuccinmide / tetrachloromethane / 6 h / 77 °C View Scheme

1: hydrogenchloride / water; methanol / 4 h / 20 - 50 °C 2: N,N-dimethyl-aniline / toluene / 7 h / 20 °C / Cooling with ice; Reflux 3: dibenzoyl peroxide; N-bromosuccinmide / tetrachloromethane / 6 h / 77 °C View Scheme

potassium iodide in acetone 3 h; Ambient temperature;