sodium hydroxide in methanol; water 3 h; Heating;

1: 95 percent / sulfuric acid / 24 h / Heating 2: 72 percent / nitric acid / H2O / 24 h / 20 °C 3: 80 percent / potassum carbonate; 18-crown-6 / acetone / 36 h / 20 °C 4: 97 percent / sodium hydroxide / H2O; methanol / 3 h / Heating View Scheme

1: 72 percent / nitric acid / H2O / 24 h / 20 °C 2: 80 percent / potassum carbonate; 18-crown-6 / acetone / 36 h / 20 °C 3: 97 percent / sodium hydroxide / H2O; methanol / 3 h / Heating View Scheme

1: 80 percent / potassum carbonate; 18-crown-6 / acetone / 36 h / 20 °C 2: 97 percent / sodium hydroxide / H2O; methanol / 3 h / Heating View Scheme