1: 80 percent / aq. H2O2; NaOH / methanol / 6 h / 20 °C 2: 36 percent / Bu3SnH; AIBN / benzene / 8 h / Heating View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 53 percent / Li / tetrahydrofuran / 7 h / 25 &deg;C<br />2: 98 percent / PCC / CH₂Cl₂ / 1 h / 25 &deg;C<br /> <br /> &nbsp;