1: diethyl ether; aqueous hydrazine hydrate 2: hydrochloric acid; glacial acetic acid; sodium nitrite View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 61 percent / NaNO₂, 90percent aq.H₂SO₄ <br />2: PCl₅ / 0.17 h / Heating<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '2036449', constants.ctx, '0')">phosphorus pentachloride</a> <br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 44 percent / KMnO₄, base / 2 h / 100 &deg;C<br />2: PCl₅ / 0.17 h / Heating<br /> <br /> &nbsp;