potassium hydroxide in methanol Heating;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: toluene / Heating<br />1.2: 51 percent / HCl / tetrahydrofuran<br />2.1: 100 percent / TBAF / tetrahydrofuran / 20 &deg;C<br /> <br /> &nbsp;