hydrogenchloride T=25°C; 24 h;

<b>Multi-step reaction with 3 steps<br /> </b>1: 95 percent / pyridinium chlorochromate / CH₂Cl₂ / 24 h / 25 &deg;C<br />2: 78 percent / NH₂OH*H₂O, pyridine / ethanol / 1 h / Heating<br />3: 74 percent / LiAlH₄ / tetrahydrofuran / 8 h / 80 - 85 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 78 percent / NH₂OH*H₂O, pyridine / ethanol / 1 h / Heating<br />2: 74 percent / LiAlH₄ / tetrahydrofuran / 8 h / 80 - 85 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 1.) n-BuLi / 1.) THF, hexane, 0-5 deg C, 1 h; 2.) THF, hexane, 0-5 deg C, 3 h then 25 deg C, 14-18 h<br />2: 95 percent / pyridinium chlorochromate / CH₂Cl₂ / 24 h / 25 &deg;C<br />3: 78 percent / NH₂OH*H₂O, pyridine / ethanol / 1 h / Heating<br />4: 74 percent / LiAlH₄ / tetrahydrofuran / 8 h / 80 - 85 &deg;C<br /> <br /> &nbsp;