1: dimethylsulfoxide / 0.17 h / Ambient temperature 2: 95 percent / aq. KOH / ethanol / 10 h / Heating View Scheme

in dimethyl sulfoxide 0.166667 h; Ambient temperature; Yield given;

<b>Multi-step reaction with 3 steps<br /> </b>1: 59 percent / acetic acid / ethanol / 2 h / Heating<br />2: 94 percent / LiAlH₄ / diethyl ether / 7 h / Heating<br />3: 48percent hydrobromic acid, acetic acid / 15 h / Heating<br /> <br /> &nbsp;