Sodium Hydroxide → HCID 19101616, compound

Participants

Reaction Steps

In 3 ml of concentrated sulfuric acid was dissolved 290 mg of 5,7-di-(1-imidazolyl)quinoxaline-2,3-(1H,4H)-dione hydrate followed by addition of 220 mg of potassium nitrate with ice-cooling. After cooling to room temperature, the reaction mixture was further stirred at 80° C. for 30 minutes. After cooling to room temperature, the reaction mixture was poured in ice-water and adjusted to pH 7 with sodium hydroxide. The resulting crystals were recovered by filtration and washed with water to provide 124 mg of 5,7-di(1-imidazolyl)-6-nitroquinoxaline-2,3-(1H,4H)-dione.

Provenance & Evidence