1: benzene / Irradiation 2: aq. HCl View Scheme

1: benzene / 18 h / 11 - 12 °C / Irradiation 2: aq. HCl View Scheme

N-bromosuccinmide; potassium acetate; azobisisobutyronitrile 1) CCl4, reflux, 0.5-1h 2) HOAc, reflux, 1h // second step also with NEt3 (10h) or methanolic KOH; Multistep reaction;