1: 90 percent / NaN3 / dimethylformamide / 14 h / 65 °C 2: 73 percent / NaOMe / methanol / 48 h / 20 °C 3: 25 percent / H2 / Pd/C / methanol / 27 h View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '113916', constants.ctx, '0')">N-bromosuccinmide</a>;&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, '1098295', constants.ctx, '0')">tetrachloromethane</a> <br />2&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 98 percent / ZnCl₂ / 144 h / 20 &deg;C<br />2: 80 percent / pyridine / 64 h / 20 &deg;C<br />3: 80 percent / NBS; K₂CO₃ / CCl₄ / 2 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 98 percent / ZnCl₂ / 144 h / 20 &deg;C<br />2: 80 percent / pyridine / 64 h / 20 &deg;C<br />3: 80 percent / NBS; K₂CO₃ / CCl₄ / 2 h / Heating<br /> <br /> &nbsp;