1: 97 percent / acetic acid, piperidine / benzene / 3 h / Heating 2: 99 percent / H2 / 5 percent Pd/C / ethanol / 760 Torr / Ambient temperature 3: sodamide / toluene / 2 h / Heating View Scheme

1: 99 percent / H2 / 5 percent Pd/C / ethanol / 760 Torr / Ambient temperature 2: sodamide / toluene / 2 h / Heating View Scheme

sodium amide in toluene 2 h; Heating;

sulfuric acid T=120°C; 1 h;