ammonia; acetic acid 1.) methanol, room temp., 2.) room temp.; Yield given. Multistep reaction;

<b>Multi-step reaction with 3 steps<br /> </b>1: 4 h / Ambient temperature<br />2: 70 percent / pyridine; CH₂Cl₂ / 4 h / Temperature: from -20 deg C to 0 deg C<br />3: 97 percent / hexamethylphosphoric acid triamide; dimethylformamide / 20 h / Ambient temperature<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: pyridinium p-toluenesulfonate / CH₂Cl₂ / 24 h / Ambient temperature<br />2: HF*Pyr / tetrahydrofuran / 24 h / Ambient temperature<br />3: 4 h / Ambient temperature<br />4: 70 percent / pyridine; CH₂Cl₂ / 4 h / Temperature: from -20 deg C to 0 deg C<br />5: 97 percent / hexamethylphosphoric acid triamide; dimethylformamide / 20 h / Ambient temperature<br /> <br /> &nbsp;