1: 2.87 g / bromine / acetic acid; acetic anhydride / 6 h 2: 268 mg / benzene / 8.5 h / Heating View Scheme

1: 2.87 g / bromine / acetic acid; acetic anhydride / 6 h 2: 268 mg / benzene / 8.5 h / Heating 3: 207 mg / N-bromosuccinimide / acetic acid / 5 h View Scheme

1: 2.87 g / bromine / acetic acid; acetic anhydride / 6 h 2: 268 mg / benzene / 8.5 h / Heating 3: 207 mg / N-bromosuccinimide / acetic acid / 5 h 4: 31 mg / aluminium chloride, lithium aluminium hydride / diethyl ether / 0.58 h / 20 °C View Scheme

aluminium trichloride 96 h;

1: 70 mg / aluminium chloride / 2 h 2: sodium cyanoborohydride, acetic acid / acetic anhydride / 2 h View Scheme

1: 2.87 g / bromine / acetic acid; acetic anhydride / 6 h 2: 116 mg / 2M-aq. sodium hydroxide / dioxane / 2.75 h View Scheme

1: 900 mg / aluminium chloride / 96 h 2: aq. hydrochloric acid / ethanol / 3.5 h View Scheme