反应详情

2 g (7 mmol) of 4-(4-fluoro-phenoxy)-piperidine 1-carboxylic acid tert-butyl ester was solvated in dichloromethane (12 mL) and trifluoroacetic acid was added at 0° C. (6.17 mL, 54 mmol). The mixture was stirred at room temperature overnight. NaHCO3 was slowly added until pH 9 and the mixture extracted 3 times with dichloromethane and ethyl acetate. The solvent was evaporated to yield 1.81 g (58.5 mmol, 85%) of a white solid that was used without purification on the next steps. MS (m/e): 196.3 (M+H+).

1. extractionthe mixture extracted 3 times with dichloromethane and ethyl acetate
2. customThe solvent was evaporated