1: p-toluenesulfonic acid / benzene / Heating 2: 100 percent / aq. acid / 1 h / Ambient temperature View Scheme

acetic acid in ethanol 0.5 h; Heating;

1: 87 percent / Acide acetique / ethanol / 0.5 h / Heating 2: 80 percent / aq.K2CO3 / 1 h / Heating View Scheme

1: 87 percent / Acide acetique / ethanol / 0.5 h / Heating 2: 88 percent / POCl3, pyridine / 1 h / Heating 3: 80 percent / Nh2NH2*H2O / methanol / 1 h / Heating 4: 56 percent / Ethylate de sodium / ethanol / 1.5 h / Heating View Scheme