反应详情

2-(2-Fluoro-4-methoxy-phenyl)-2-trimethylsilanyloxy-propionitrile (2.8 g, 10.47 mmol) was dissolved in dry THF (30 mL) and stirred at room temperature under nitrogen. A 2.0 M solution of borane-dimethylsulfide complex (15.7 mL, 31.41 mmol) was added dropwise and the reaction was heated at reflux for 3 hours then cooled to room temperature. Concentrated HCl was carefully added dropwise until the evolution of gas ceased. The reaction mixture was diluted with diethyl ether and a white precipitate formed. The solids were collected and washed with additional ether to give 2.5 g (100%) of 2-(2-fluoro-4-methoxy-phenyl)-2-hydroxy-propylamine hydrochloride. Electrospray mass spectrum (M−1)=199.99 (free amine)

1. temperaturethe reaction was heated
2. temperatureat reflux for 3 hours
3. temperaturethen cooled to room temperature
4. customa white precipitate formed
5. customThe solids were collected
6. washwashed with additional ether