sodium methylate Yield given;

<b>Multi-step reaction with 3 steps<br /> </b>1: 41 percent / triethylamine / CH₂Cl₂ / overnight<br />2: dimethyl sulfoxide, phosphorous pentaoxide / CH₂Cl₂ <br />3: 4-toluenesulfonic acid / benzene / 1 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 41 percent / triethylamine / CH₂Cl₂ / overnight<br />2: dimethyl sulfoxide, phosphorous pentaoxide / CH₂Cl₂ <br />3: 4-toluenesulfonic acid / benzene / 1 h / Heating<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '472690', constants.ctx, '0')">toluene-4-sulfonic acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '969212', constants.ctx, '0')">benzene</a> <br />1&nbsp;h;&nbsp;&nbsp;Heating;&nbsp;<br /> &nbsp;