hydrazine hydrate in ethanol 1 h; Reflux;

hydrazine hydrate in methanol Heating;

hydrazine hydrate

hydrazine hydrate

potassium hydroxide in ethanol 3 h; Heating;

1: sodium azide; acetic acid / 1-methyl-pyrrolidin-2-one; water / 0.27 h / 220 °C / Microwave irradiation 2: acetic acid / 1-methyl-pyrrolidin-2-one; water / 240 °C 3: hydrogenchloride / water / 0.5 h / 150 °C / 11251.1 Torr / Microwave irradiation 4: hydrazine hydrate / 1.08 h / 150 °C / 9000.9 Torr / Microwave irradiation View Scheme

1: acetic acid / 1-methyl-pyrrolidin-2-one; water / 240 °C 2: hydrogenchloride / water / 0.5 h / 150 °C / 11251.1 Torr / Microwave irradiation 3: hydrazine hydrate / 1.08 h / 150 °C / 9000.9 Torr / Microwave irradiation View Scheme

hydrazine hydrate T=145°C;

1: sulfuric acid 2: hydrazine hydrate View Scheme

T=145°C; im Autoklaven;