1: 1.18 g / ceric ammonium nitrate / acetonitrile / 0.05 h / Ambient temperature 2: 925 mg / aq. hydrochloric acid / tetrahydrofuran / 1 h / Ambient temperature View Scheme

1: 1.18 g / ceric ammonium nitrate / acetonitrile / 0.05 h / Ambient temperature 2: 925 mg / aq. hydrochloric acid / tetrahydrofuran / 1 h / Ambient temperature 3: 930 mg / sodium borohydride / methanol / 0.17 h / Ambient temperature View Scheme

1: 1.18 g / ceric ammonium nitrate / acetonitrile / 0.05 h / Ambient temperature 2: 925 mg / aq. hydrochloric acid / tetrahydrofuran / 1 h / Ambient temperature 3: 930 mg / sodium borohydride / methanol / 0.17 h / Ambient temperature 4: 850 mg / pyridine / 4 h / 0 °C 5: sodium azide / methanol; H2O / 24 h / 70 °C View Scheme

ammonium cerium(IV) nitrate in acetonitrile 0.05 h; Ambient temperature;

1: 1.18 g / ceric ammonium nitrate / acetonitrile / 0.05 h / Ambient temperature 2: 925 mg / aq. hydrochloric acid / tetrahydrofuran / 1 h / Ambient temperature 3: 930 mg / sodium borohydride / methanol / 0.17 h / Ambient temperature 4: 850 mg / pyridine / 4 h / 0 °C View Scheme