in ethanol 16 h; Heating;

hydrogenchloride in acetic acid T=80°C;

hydrogenchloride; acetic acid T=85°C; 4 h;

1: 32 percent / 50percent aq. NaOH / 72 h / Ambient temperature 2: EtONa / ethanol / 6 h / Heating 3: 2 N NaOH / 2 h / Heating 4: 5 N H2SO4 / 4.5 h / Heating 5: 55 percent / concd HCl, glacial AcOH / 4 h / 85 °C View Scheme

1: EtONa / ethanol / 6 h / Heating 2: 2 N NaOH / 2 h / Heating 3: 5 N H2SO4 / 4.5 h / Heating 4: 55 percent / concd HCl, glacial AcOH / 4 h / 85 °C View Scheme