Water → HCID 13922891, compound

Participants

Reaction Steps

6-Acetamido-2-sulfamoylbenzo[b]thiophene (0.8 g, 3 mmole) was suspended in 1N HCl (24 ml). The stirred mixture was heated to refluxing for 1 hour when a clear solution was obtained. After dilution with water (25 ml), the cooled solution was neutralized with saturated NaHCO3 solution. The product precipitated and was collected to obtain 0.57 g (83%), m.p. 240°-241° C. dec. This material was combined with 1.3 g of comparable crude product from two other runs and recrystallized from CH3CN, decolorizing with charcoal, to yield 1.46 g of 6-amino-2-sulfamoylbenzo[b]thiophene, m.p. 239°-240° C. (dec).

Provenance & Evidence