in acetic acid 2 h; Heating;

1: 92 percent / hydroxylamine hydrochloride, sodium acetate / ethanol / 2 h / Heating 2: phosphorous oxychloride / 130 °C 3: 92.5 percent / hydrazine / 0.03 h / 100 °C 4: 62 percent / acetic acid / 2 h / Heating View Scheme

1: 92.5 percent / hydrazine / 0.03 h / 100 °C 2: 62 percent / acetic acid / 2 h / Heating View Scheme

1: phosphorous oxychloride / 130 °C 2: 92.5 percent / hydrazine / 0.03 h / 100 °C 3: 62 percent / acetic acid / 2 h / Heating View Scheme

1: 39 percent / H2 / Raney nickel / ethanol / 5 h / 2585.7 Torr / Ambient temperature 2: 82 percent / hydrochloric acid / ethanol / 3 h / Heating View Scheme