Trifluoroacetic acid → 1-(Fluoromethyl)cyclopropane-1-sulfonamide

Participants

Reaction Steps

To a solution of tert-butyl (1-(fluoromethyl)cyclopropyl)sulfonylcarbamate (19.8 g, 38.7 mmol) in DCM (100 ml) was added TFA (30 ml, 387 mmol) drop wise at room temperature. The reaction mass was stirred for 2 hr. The reaction mass was evaporated under reduced pressure to get desired compound (6 g, 100%) as off white solid. 1H NMR (400 MHz, CDCl3): δ ppm 4.78-4.66 (d, J=48 Hz, 2H), 2.61 (br, s, 1H), 1.59-1.56 (m, 2H), 1.13-1.10 (m, 2H).

Provenance & Evidence