Pd-BaSO4; xylene T=160°C; Hydrogenation;

<b>Multi-step reaction with 5 steps<br /> </b>1: acetyl chloride / 17 h / |Reflux; |Inert atmosphere<br />2: sodium hydride / mineral oil; N,N-dimethyl-formamide / 2.33 h / 0 - 20 &deg;C / |Inert atmosphere<br />3: sodium hydroxide / methanol / 45 &deg;C / |Inert atmosphere<br />4: pyridine / 2 h / 20 &deg;C / |Darkness<br />5: thionyl chloride / 4 h / 110 &deg;C<br /> <br /> &nbsp;