Trifluoroacetic acid → N-(2,6-difluorophenyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxamide

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Reaction Steps

To a solution of tert-butyl 2-(2,6-difluorophenylcarbamoyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (0.2 g, 533 μmol, Eq: 1.00) in DCM (2 mL) was added TFA (2 mL, 26.0 mmol, Eq: 48.7) and the resulting solution was stirred at rt for 2 h. The reaction mixture was concentrated in vacuo and the residue was treated with saturated aqueous NaHCO3 (10 mL). The resulting mixture was extracted with DCM (3×10 mL) and the combined organic layers were dried over Na2SO4 and concentrated in vacuo to give N-(2,6-difluorophenyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxamide as an off-white solid (0.15 g), m/z=276 (M+H).

Provenance & Evidence