sodium hydroxide Heating;

<b>Multi-step reaction with 4 steps<br /> </b>1: thionyl chloride<br />3: hydrazine hydrate / ethanol / 8 h / Heating<br />4: 85 percent / ethanol / 6 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>2: hydrazine hydrate / ethanol / 8 h / Heating<br />3: 85 percent / ethanol / 6 h / Heating<br /> <br /> &nbsp;