1: TosN3, NEt3 / acetonitrile 2: 50 percent / H2O / diethyl ether / Irradiation 3: benzene / Heating 4: diborane / tetrahydrofuran View Scheme

4-toluenesulfonyl azide; triethylamine in acetonitrile 1.) 0 deg C, 1 h, 2.) RT, 2 h;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '741857', constants.ctx, '0')">acetonitrile</a> <br />2&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;&nbsp;Yield given;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: NaOEt / ethanol / 20 h / Heating<br />2: H₂O; acetonitrile / 2 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: 95 percent / 40 aq. percent NaOH, trimethylbenzylammonium chloride / benzene / 17 h / Heating<br />2: 75 percent / H₂ / 10 percent Pd-C / ethanol<br />3: 72 percent / triethylamine / benzene / 3 h<br />4: NaOEt / ethanol / 20 h / Heating<br />5: H₂O; acetonitrile / 2 h / Heating<br /> <br /> &nbsp;