Trifluoroacetic acid → 3-amino-N-(phenylsulfonyl)propanamide

Participants

Reaction Conditions

Reaction Steps

Tert-butyl 3-oxo-3-(phenylsulfonamido)propylcarbamate (3.6 g, 15.1 mmol) was dissolved in dichloromethane (60 mL). Then CF3COOH (1.1 mL, 0.3 mmol, 20 equiv) was added to the mixture at 0° C. and stirred for 2 h at 0° C. The reaction mixture was concentrated and purified by flash chromatography to give 3-amino-N-(phenylsulfonyl)propanamide as a white solid (1.4 g, 40%). EDI-MS: 229.0 (M+H)+. 1H NMR (400 MHz, DMSO-d6) δ: 7.79˜7.71 (m, 2H), 7.70˜7.43 (brs, 3H), 7.42˜7.34 (m, 3H), 2.83 (t, 2H), 2.24 (t, 2H).

Provenance & Evidence