1: 35 percent / CH3COOH / 3 h / Heating 2: 86 percent / CH3COOH, H2O, tetrachloro-o-benzoquinone / 6 h / Heating View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 92 percent / CH₂Cl₂ / 9 h / Heating<br />2: 83 percent / conc. HCl / methanol / 0 &deg;C<br /> <br /> &nbsp;