Acetic Anhydride → HCID 22097134, compound

Participants

Reaction Steps

29.0 g (0.111 mol) of 7-amino-1-(2-ethylbutyl)-2,3(1H,4H)-quinoxalinedione were dissolved in 200 ml of acetic acid. A spatula tip of 4-(N,N-dimethylamino)pyridine was added and then 11.4 g (0.111 mol) of acetic anhydride were added dropwise. The mixture was stirred at room temperature for 30 minutes and then poured into ice-water, and the precipitate was filtered off with suction and dried to yield 22.5 g (67%) of the product. Melting point 168°-170° C.

Provenance & Evidence