Ammonium Hydroxide → 6-amino-N-(thiazol-2-yl)pyridine-3-sulfonamide

Participants

Reaction Conditions

Reaction Steps

Under a N2 atmosphere, a mixture of 6-chloro-N-(thiazol-2-yl)pyridine-3-sulfonamide (0.7 g, 2.54 mmol), ammonium hydroxide (7.5 mL) and ethanol (7.5 mL), was stirred at 120° C. in a sealed tube for 4 days. The reaction was cooled to RT. After evaporating the solvents under reduced pressure, purification via silica gel chromatography using 5%-10% methanol in CH2Cl2 gave 6-amino-N-(thiazol-2-yl)pyridine-3-sulfonamide as a orange solid (0.14 g, 22%). LC/MS (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)), m/z: M+1 obs=257.2; tR=0.2 min.

Provenance & Evidence