Methanol → HCID 178507423, compound

Participants

Reaction Steps

To a stirred solution of 6-bromo-2-(4-nitrophenyl)-3H-imidazo[4,5-b]pyridine (1.6 g, 5 mmol) in methanol (45 ml) ammonium sulfide (8.5 ml, 25 mmol, 20% solution in water) was added slowly. The mixture was stirred at room temperature for 30 minutes and then heated and refluxed for 5 h. The reaction mixture was concentrated and cooled to 0° C. The precipitate was filtered off, washed with cold methanol and dried to give the title compound.

Provenance & Evidence