hydrogenchloride; lithium hexamethyldisilazane 1.) THF, 0 deg C; 25 deg C, 2 h, 2.) 10 min; Yield given. Multistep reaction;

<b>Multi-step reaction with 2 steps<br /> </b>1: 80 percent / xylene / 72 h / Heating; 4-Angstroem sieves<br />2: 100 percent / MCPBA / CH₂Cl₂ / 30 h / 25 &deg;C<br /> <br /> &nbsp;