1: With sodium in methanol T=80°C; 4 h; 2: With sodium hydroxide in methanol; water T=80°C; 0.666667 h; 3: With hydrogenchloride in methanol; water Reflux;

1: 76 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 View Scheme

1: EtONa / ethanol / 6 h / Heating 2: 2 N NaOH / 2 h / Heating 3: 5 N H2SO4 / 4.5 h / Heating View Scheme