1.1: sodium tetrahydroborate / N,N-dimethyl-formamide / 0.17 h / 20 °C / Inert atmosphere 1.2: Inert atmosphere 2.1: ammonium hydroxide / 1,4-dioxane / 20 °C 3.1: sodium periodate / water-d2 / 120 h / 25 °C / pH 7 / aq. phosphate buffer View Scheme

1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 20 °C 2: ammonium hydroxide / 1,4-dioxane / 24 h / 20 °C 3: oxygen / 3 h / |Photolysis View Scheme

1: 2.1 g / methanol / 0.5 h 2: pyridine / 1 h / Ambient temperature View Scheme

1: NaHCO3 / H2O 2: 72 percent / CrO3*pyridine; Al2O3; hydrochloric acid / 1,2-dichloro-ethane / 18 h / 25 °C 3: 93 percent / triethylamine / methanol; H2O / 2 h / 20 °C View Scheme

1: 250 mg / NaN3 / dimethylformamide 2: 90 percent / aq. NH3 / dioxane View Scheme