1: 1.) CDI / 1.) THF, r.t., 1 h, 2.) THF, light petroleum, 0-5 deg C, 4 h 2: 42 percent / various solvent(s) / 1 h / Heating View Scheme

<b>Multi-step reaction with 3 steps<br /> </b>1: 21 percent / various solvent(s) / 1 h / Heating<br />2: 98 percent / NH₂OH*HCl, pyridine / ethanol / 1 h / Heating<br />3: 78 percent / NaOH / H₂O / 16 h / Heating<br /> <br /> &nbsp;