1: With sodium hydroxide in methanol T=18 - 25°C; 6 h; 2: With hydrogenchloride in water pH=6;

1.1: sodium hydride / tetrahydrofuran / 25 °C / Cooling with ice 1.2: 24 h / 0 - 60 °C 2.1: sodium hydroxide / methanol / 6 h / 18 - 25 °C 2.2: pH 6 View Scheme

1.1: sodium hydride / tetrahydrofuran / 25 °C / Cooling with ice 1.2: 24 h / 0 - 60 °C 2.1: sodium hydroxide / methanol / 6 h / 18 - 25 °C 2.2: pH 6 View Scheme