Potassium Nitrate → HCID 22097123, compound

Participants

Reaction Steps

69.8 g (0.25 mol) of 6-chloro-1-(ethoxy-carbonylmethyl)-2,3(1H,4H)-quinoxalinedione were dissolved in 625 ml of concentrated sulfuric acid and, at 0° C., 25 g (0.25 mol) of potassium nitrate were added a little at a time. The cooling was then removed, and the mixture was stirred until reaction was complete. The mixture was poured into ice-water, and the precipitate was filtered off with suction to yield 77.8 g (95%) of the product.

Provenance & Evidence