373-88-6

753-90-2

373-88-6

General procedure for the synthesis of 2,2,2-trifluoroethylamine hydrochloride from 2,2,2-trifluoroethylamine: 100 g of ethanol and 33 g of 2,2,2-trifluoroethylamine were added to a triple-necked flask, and 35 g of saturated hydrochloric acid solution was added slowly and dropwise at temperatures lower than 25°C. The reaction system was then brought up to 50°C and maintained there for 1 hour. After the dropwise addition, the temperature of the reaction system was raised to 50 °C and maintained for 1 hour. Subsequently, the temperature of the reaction solution was controlled to be 45±5°C under a vacuum of 0.98 MPa and a decompression distillation was carried out for 5 hours to remove water and ethanol. Finally 43.5 g of 2,2,2-trifluoroethylamine hydrochloride was obtained in 96.30% yield. The resulting product was a white powdery crystalline solid with 0.13% water.