1: 80 percent / hydrazine hydrate / acetic acid / 0.5 h / Heating 2: 80 percent / conc. hydrochloric acid / ethanol / 2 h / 60 - 80 °C 3: 85 percent / 10percent NaOH / ethanol / 1 h / Heating 4: SOCl2 / Heating View Scheme

1: 85 percent / 10percent NaOH / ethanol / 1 h / Heating 2: SOCl2 / Heating View Scheme

1: 80 percent / conc. hydrochloric acid / ethanol / 2 h / 60 - 80 °C 2: 85 percent / 10percent NaOH / ethanol / 1 h / Heating 3: SOCl2 / Heating View Scheme

thionyl chloride Heating;