1: 72 percent / phosphorus pentachloride / CHCl3 / 0.25 h / Heating 2: 30 percent / aluminum chloride; ferric chloride / 0.67 h / 25 - 225 °C / 3 - 5 Torr 3: 52 percent / chromium(VI) oxide / H2O; acetic acid / 2 h / 50 - 55 °C 4: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 5: acetic acid / 4 h / Heating 6: 0.260 g / water / CH2Cl2 View Scheme

1: 85 percent / sodium hydroxide / ethanol; H2O / 6 h / 90 °C 2: 72 percent / phosphorus pentachloride / CHCl3 / 0.25 h / Heating 3: 30 percent / aluminum chloride; ferric chloride / 0.67 h / 25 - 225 °C / 3 - 5 Torr 4: 52 percent / chromium(VI) oxide / H2O; acetic acid / 2 h / 50 - 55 °C 5: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 6: acetic acid / 4 h / Heating 7: 0.260 g / water / CH2Cl2 View Scheme

1.1: sodium ethoxide / ethanol / 0.5 h 1.2: 98 percent / ethanol / 0 - 25 °C 2.1: 85 percent / sodium hydroxide / ethanol; H2O / 6 h / 90 °C 3.1: 72 percent / phosphorus pentachloride / CHCl3 / 0.25 h / Heating 4.1: 30 percent / aluminum chloride; ferric chloride / 0.67 h / 25 - 225 °C / 3 - 5 Torr 5.1: 52 percent / chromium(VI) oxide / H2O; acetic acid / 2 h / 50 - 55 °C 6.1: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 7.1: acetic acid / 4 h / Heating 8.1: 0.260 g / water / CH2Cl2 View Scheme

1: 52 percent / chromium(VI) oxide / H2O; acetic acid / 2 h / 50 - 55 °C 2: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 3: acetic acid / 4 h / Heating 4: 0.260 g / water / CH2Cl2 View Scheme

1: 30 percent / aluminum chloride; ferric chloride / 0.67 h / 25 - 225 °C / 3 - 5 Torr 2: 52 percent / chromium(VI) oxide / H2O; acetic acid / 2 h / 50 - 55 °C 3: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 4: acetic acid / 4 h / Heating 5: 0.260 g / water / CH2Cl2 View Scheme

1: 58 percent / NBS; AIBN; bromine / CCl4 / 90 h / Heating 2: acetic acid / 4 h / Heating 3: 0.260 g / water / CH2Cl2 View Scheme

1: acetic acid / 4 h / Heating 2: 0.260 g / water / CH2Cl2 View Scheme

1: acetic acid / 4 h / Heating 2: 0.207 g / water / CH2Cl2 View Scheme

1: ethanol / 2 h / 25 °C 2: aqueous hydrochloric acid / Heating View Scheme