1: 78 percent / NaNO2, acetic acid / ethanol / 0.5 h 2: 1.2 g / Zn, formic acid / tetrahydrofuran; H2O / 1 h / 0 - 5 °C 3: 1M KOH / methanol / Ambient temperature View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 89 percent / K₂CO₃ / aq. ethanol / 8 h / Heating<br />2: 85 percent / K₂CO₃ / dimethylformamide / Ambient temperature<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4267587', constants.ctx, '0')">potassium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;