1: 74 percent / NaN3 / dimethylformamide / 2 h / Heating 2: 71 percent / TsOH / methanol; CH2Cl2 / 0.5 h / Ambient temperature View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '103233', constants.ctx, '0')">pyridine</a> <br />2&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 96 percent / pyridine / 2 h / Ambient temperature<br />2: 67 percent / pyridine / 1.5 h / Ambient temperature<br />3: 50 percent / Bu₃SnH, AIBN / toluene / 2 h / Heating<br />4: 91 percent / pyridine / 2 h / Ambient temperature<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 50 percent / Bu₃SnH, AIBN / toluene / 2 h / Heating<br />2: 91 percent / pyridine / 2 h / Ambient temperature<br /> <br /> &nbsp;