1: 1.) NaH / 1.) THF, 0 deg C, 1 h, 2.) THF, rt 2: EtONa / ethanol / 0 °C View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 87 percent / xylene / Heating<br />2: 51 percent / pyridine / Ambient temperature<br /> <br /> &nbsp;