1: With water; sodium hydroxide in ethanol 5 h; Reflux; 2: With hydrogenchloride in water pH=~ 3;

1.1: ethyl iodide / 1 h / 60 °C 1.2: 1 h / 50 °C 2.1: sodium hydroxide; water / ethanol / 5 h / Reflux 2.2: 20 °C / pH ~ 3 View Scheme

1.1: dihydrogen peroxide; acetic acid / 9.5 h / 80 °C 2.1: ethyl iodide / 1 h / 60 °C 2.2: 1 h / 50 °C 3.1: sodium hydroxide; water / ethanol / 5 h / Reflux 3.2: 20 °C / pH ~ 3 View Scheme