hydrogen; palladium on activated charcoal in methanol T=25°C; P=800 - 900 Torr;

<b>Multi-step reaction with 2 steps<br /> </b>1: 91 percent / LiAlH₄ / diethyl ether / 18 h / Heating<br />2: 46 percent / HNO₃ / CH₂Cl₂ / 1 h / 25 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 93 percent / PBr₃ / diethyl ether / 3 h / Heating<br />2: 91 percent / LiAlH₄ / diethyl ether / 18 h / Heating<br />3: 46 percent / HNO₃ / CH₂Cl₂ / 1 h / 25 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 100 percent / LiAlH₄ / diethyl ether / 4 h / Heating<br />2: 93 percent / PBr₃ / diethyl ether / 3 h / Heating<br />3: 91 percent / LiAlH₄ / diethyl ether / 18 h / Heating<br />4: 46 percent / HNO₃ / CH₂Cl₂ / 1 h / 25 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: 84 percent / 336 h / 200 - 210 &deg;C<br />2: 100 percent / LiAlH₄ / diethyl ether / 4 h / Heating<br />3: 93 percent / PBr₃ / diethyl ether / 3 h / Heating<br />4: 91 percent / LiAlH₄ / diethyl ether / 18 h / Heating<br />5: 46 percent / HNO₃ / CH₂Cl₂ / 1 h / 25 &deg;C<br /> <br /> &nbsp;