Tert-butyl 5-oxo-5-(3,4,5-trifluorophenyl)pentylcarbamate → 5-Amino-1-(3,4,5-trifluorophenyl)pentan-1-one

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Reaction Steps

Tert-butyl 5-oxo-5-(3,4,5-trifluorophenyl)pentylcarbamate (0.18 g, 0.54 mmol) was stirred in trifluoroacetic acid/dichloromethane 1:1 (8 mL) for 1 hour then concentrated. The residue was dissolved in ethyl acetate (40 mL) and washed with saturated sodium chloride/2M aqueous sodium hydroxide 10:1 (11 mL), then dried over anhydrous sodium sulfate, filtered and concentrated to provide 5-amino-1-(3,4,5-trifluorophenyl)pentan-1-one (0.11 g, 88% yield) as an oil. MS (EI) for C11H12F3NO: 232 (MH+).

Provenance & Evidence