1: 76 percent / sodium iodide / acetone / 0.5 h / Ambient temperature 2: 28 percent Chromat. / potassium carbonate / acetonitrile / 20 h / 20 °C / Irradiation View Scheme

<b>Multi-step reaction with 4 steps<br /> </b>1: 1.) magnesium / 1.) ether; 2.) reflux, 2 h<br />2: 21.8 g / m-chloroperbenzoic acid / CH₂Cl₂ / Heating<br />3: 24 percent / lithium diethylamide<br />4: 32 percent / pyridine / CH₂Cl₂ / 2 h<br /> <br /> &nbsp;