Ammonia → 6-Amino-2-fluoronicotinamide

Participants

Reaction Steps

A solution of 2,6-difluoronicotinamide (4.68 g, 0.029 mmol) in dry formamide (30 mL) is saturated with ammonia and allowed to stand at room temperature for 24 h. Water (50 mL) is added and the resultant precipitate is filtered off and washed well with water, to give 6-amino-2-fluoronicotinamide (1.41 g, 31%) mp 236-237° C. 1H NMR (DMSO) δ 7.89 (1H, dd, J=10.4, 8.4 Hz), 7.31, 7.16 (1H, 1H, 2 brs,), 6.93 (2H, brs), 6.36 (1H, dd, J=8.4, 2.4 Hz).

Provenance & Evidence