hydrogenchloride 11 h; Heating;

1: 73 percent / phenol / 24 h / 100 °C 2: 89 percent / NH4Cl, NH4OH / H2O / 4 h / Ambient temperature 3: 46 percent / pyridine / 12 h / Ambient temperature 4: 95 percent / 6N HCl / 11 h / Heating View Scheme

1: 89 percent / NH4Cl, NH4OH / H2O / 4 h / Ambient temperature 2: 46 percent / pyridine / 12 h / Ambient temperature 3: 95 percent / 6N HCl / 11 h / Heating View Scheme

1: 46 percent / pyridine / 12 h / Ambient temperature 2: 95 percent / 6N HCl / 11 h / Heating View Scheme