ammonium hydroxide; sodium azide 1) MeOH, r.t., 2) DMF, 100 deg C; Yield given. Multistep reaction;

<b>Multi-step reaction with 4 steps<br /> </b>1: 98 percent / H₂ / 5percent Pd/C / ethanol<br />2: 87 percent / H⁺ / benzene / Heating<br />3: 80 percent / ZnCl₂ / Ambient temperature<br />4: 42 percent / SnCl₄ / 1,2-dichloro-ethane / Ambient temperature<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 80 percent / ZnCl₂ / Ambient temperature<br />2: 42 percent / SnCl₄ / 1,2-dichloro-ethane / Ambient temperature<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: 2) NaOH / 1) Py_., 2) EtOH, 0 deg C<br />2: 98 percent / H₂ / 5percent Pd/C / ethanol<br />3: 87 percent / H⁺ / benzene / Heating<br />4: 80 percent / ZnCl₂ / Ambient temperature<br />5: 42 percent / SnCl₄ / 1,2-dichloro-ethane / Ambient temperature<br /> <br /> &nbsp;