sodium hydroxide 0.5 h; Heating;

1: 87 percent / acetic acid / 1.) reflux, 40 min, 2.) RT, 12 h 2: 76 percent / 2percent aq. NaOH / 0.5 h / Heating View Scheme

1: 95 percent / 12 h / 60 °C 2: 87 percent / acetic acid / 1.) reflux, 40 min, 2.) RT, 12 h 3: 76 percent / 2percent aq. NaOH / 0.5 h / Heating View Scheme