1: 90 percent / sodium ethoxide / ethanol / 0.5 h / Ambient temperature 2: 89 percent / acetic anhydride / dimethylsulfoxide / 0.25 h / 100 °C 3: 95 percent / aq. sodium hydroxide / 0.08 h View Scheme

1: 90 percent / sodium ethoxide / ethanol / 0.5 h / Ambient temperature 2: 89 percent / acetic anhydride / dimethylsulfoxide / 0.25 h / 100 °C 3: 95 percent / aq. sodium hydroxide / 0.08 h 4: 86 percent / diethyl ether / 3 h / 0 °C 5: CDCl3 / 3 h / 55 °C 6: methanol View Scheme

1: 90 percent / sodium ethoxide / ethanol / 0.5 h / Ambient temperature 2: 89 percent / acetic anhydride / dimethylsulfoxide / 0.25 h / 100 °C View Scheme

sodium ethanolate in ethanol 0.5 h; Ambient temperature;