lithium hydroxide in water 2 h; Heating;

1: 97 percent / sodium hydride / dimethylformamide; various solvent(s) / 15 h / 20 °C 2: 98 percent / lithium hydroxide monohydrate / H2O / 2 h / Heating View Scheme

4-(N,N-dimethlyamino)pyridine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in dichloromethane T=0 - 20°C; 24 h;