sulfuric acid

<b>Multi-step reaction with 2 steps<br /> </b>1: 89 percent / AlCl₃ / 1.) -40 deg C, 15 min, 2.) -10 deg C, 2 h<br />2: 75 percent / Br₂ / CCl₄ / 10 h / Heating; Irradiation<br /> <br /> &nbsp;