1: diethylaluminium chloride / hexane / 2 h / 20 °C / Inert atmosphere 2: boron tribromide / dichloromethane / 0.42 h / 20 °C / Inert atmosphere 3: palladium 10 on activated carbon; hydrogen / methanol / 2 h / 20 °C / 3102.97 Torr / Inert atmosphere View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: toluene-4-sulfonic acid / methanol / 5 h / 20 &deg;C<br />2: potassium carbonate / acetone / 20 &deg;C / Inert atmosphere<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4267587', constants.ctx, '0')">potassium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '635680', constants.ctx, '0')">acetone</a> <br />T=20&deg;C;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> <br /> &nbsp;