Trifluoroacetic acid → HCID 86650181, compound

Participants

Reaction Steps

To a solution of 3,8-diaza-bicyclo[3.2.1]octane-8-carboxylic acid tert-butyl ester (212 mg, 1.0 mmol) in DCM (4 mL) were added triethylamine (208 μL, 1.5 mmol) and trifluoroacetic anhydride (169 μL, 1.2 mmol) at 0° C. and the mixture stirred at 0° C. for 2 h. The reaction mixture was concentrated in vacuo and the resultant residue was purified by column chromatography to give 3-(2,2,2-trifluoro-acetyl)-3,8-diaza-bicyclo[3.2.1]octane-8-carboxylic acid tert-butyl ester as a colourless oil. To a solution of 3-(2,2,2-trifluoro-acetyl)-3,8-diaza-bicyclo[3.2.1]octane-8-carboxylic acid tert-butyl ester in DCM (4 mL) was added TFA (1 mL) and the solution stirred at RT for 1 h. The reaction mixture was concentrated in vacuo to give the title compound as a colourless oil (212 mg, 66%).

Provenance & Evidence