potassium tert-butylate in ethanol T=100°C; 6 h;

1: 67 percent / HCl(g) / 144 h / 20 °C 2: 1.) glacial acetic acid, 2.) 5 N HCl / 1.) 100 deg C, 2 h, 2.) 100 deg C, 30 min 3: 52 percent / acetic anhydride, nitric acid / 0.25 h / 100 °C 4: 49 percent / t-BuOK / ethanol / 6 h / 100 °C View Scheme

1: 1.) glacial acetic acid, 2.) 5 N HCl / 1.) 100 deg C, 2 h, 2.) 100 deg C, 30 min 2: 52 percent / acetic anhydride, nitric acid / 0.25 h / 100 °C 3: 49 percent / t-BuOK / ethanol / 6 h / 100 °C View Scheme