1: aq. HCl, NaNO2 / CHCl3 / 0.25 h / -5 °C 2: CHCl3 / Heating 3: 77 percent / (C2H5)3N / CHCl3 / 0.75 h / 20 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4933273', constants.ctx, '0')">hydrazine hydrate</a> <br />2.5&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;