1: K2CO3 / dimethylformamide 2: 49 g 3: K2CO3 / dimethylformamide 4: H2 / 10percent Pd-C / ethyl acetate / 8 h / 80 °C / 38000 Torr 5: 8 g 6: LiAlH4 7: p-tosyl chloride View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1.1: potassium carbonate / acetone / 20 &deg;C<br />2.1: sodium ethanolate / ethanol / 4 h / Reflux; Inert atmosphere<br />2.2: 3 h / Reflux<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: potassium carbonate / acetone / 20 &deg;C<br />2.1: sodium ethanolate / ethanol / 4 h / Reflux; Inert atmosphere<br />2.2: 3 h / Reflux<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: sodium ethanolate / ethanol / Reflux<br />2: water; sodium hydroxide / ethanol / Reflux<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: potassium carbonate / ethanol<br />2: sodium ethanolate / ethanol / Reflux<br />3: water; sodium hydroxide / ethanol / Reflux<br /> <br /> &nbsp;