Ammonia → HCID 21283489, compound

Participants

Reaction Steps

To a solution of 1-benzothiophene-5,7-diol (1.16 g, 6.98 mmol) in acetone (20 ml) under argon were added potassium carbonate (2.89 g, 20.9 mmol) and iodomethane (912 μl, 14.6 mmol). The resulting mixture was stirred under reflux for 18 h. After cooling to rt, the mixture was treated with a 7 M solution of ammonia in methanol (10 ml) for 30 min and then adsorbed on silica gel. Purification by column chromatography over silica gel (cyclohexane/ethyl acetate 40:1) afforded 0.52 g (32% of th.) of the title compound.

Provenance & Evidence