AlCl3, aluminium chloride in toluene T=20°C; 4 h;

1: acetic acid / water; dimethyl sulfoxide / 1.5 h / 50 °C 2: sodium hydroxide / 0.5 h / 105 °C 3: acetic anhydride / 6 h / |Reflux 4: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

1: acetic acid / ethanol / 3 h / |Reflux; |Inert atmosphere 2: acetic acid / water; dimethyl sulfoxide / 1.5 h / 50 °C 3: sodium hydroxide / 0.5 h / 105 °C 4: acetic anhydride / 6 h / |Reflux 5: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

1: acetic acid / ethanol / 3 h / |Reflux; |Inert atmosphere 2: acetic acid / water; dimethyl sulfoxide 3: acetic acid / water; dimethyl sulfoxide / 1.5 h / 50 °C 4: sodium hydroxide / 0.5 h / 105 °C 5: acetic anhydride / 6 h / |Reflux 6: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

1: acetic acid / water; dimethyl sulfoxide / 1.5 h / 50 °C 2: sodium hydroxide / 0.5 h / 105 °C 3: acetic anhydride / 6 h / |Reflux 4: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

1: sodium hydroxide / 0.5 h / 105 °C 2: acetic anhydride / 6 h / |Reflux 3: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

1: acetic anhydride / 6 h / |Reflux 2: AlCl3, aluminium chloride / toluene / 4 h / 20 °C View Scheme

dihydrogen peroxide; acetic acid