N-bromosuccinmide; dibenzoyl peroxide in tetrachloromethane Reflux;

1: 183.5 g / NaOH, 30percent H2O2 / H2O 2: trifluoroacetic acid, isoamyl nitrite / tetrahydrofuran / 1.5 h 3: 14.38 g / 1,2-dichloro-ethane / Heating 4: 69.16 percent / N-bromosuccinimide / CCl4 / Heating View Scheme

1: 96percent sulfuric acid / H2O / 1 h / 80 °C 2: 183.5 g / NaOH, 30percent H2O2 / H2O 3: trifluoroacetic acid, isoamyl nitrite / tetrahydrofuran / 1.5 h 4: 14.38 g / 1,2-dichloro-ethane / Heating 5: 69.16 percent / N-bromosuccinimide / CCl4 / Heating View Scheme

1: Na2SO4, conc. HCl, hydroxylamine hydrochloride / H2O / 1.5 h / Heating 2: 96percent sulfuric acid / H2O / 1 h / 80 °C 3: 183.5 g / NaOH, 30percent H2O2 / H2O 4: trifluoroacetic acid, isoamyl nitrite / tetrahydrofuran / 1.5 h 5: 14.38 g / 1,2-dichloro-ethane / Heating 6: 69.16 percent / N-bromosuccinimide / CCl4 / Heating View Scheme

1: trifluoroacetic acid, isoamyl nitrite / tetrahydrofuran / 1.5 h 2: 14.38 g / 1,2-dichloro-ethane / Heating 3: 69.16 percent / N-bromosuccinimide / CCl4 / Heating View Scheme

1: 14.38 g / 1,2-dichloro-ethane / Heating 2: 69.16 percent / N-bromosuccinimide / CCl4 / Heating View Scheme