Water → HCID 54430977, compound

Participants

Reaction Steps

To a solution of 3.76 g (0.05 mole) of 2-methoxyethylamine in 15 ml of water 6.11 g (0.02 mole) of 1,2,3,4-tetrahydro-7-nitro-2,3-dioxo-6-quinoxalinesulfonyl chloride are added at room temperature, under stirring. The mixture is stirred at room temperature for 6 hours and then allowed to stand for 16 hours. The separated crystals are filtered off, washed successively with water and acetone, filtered again, dried and dissolved in a slight amount of hot dimethyl sulfoxide. The product is precipitated from this solution with water. Thus 4.05 g (59%) of 1,2,3,4-tetrahydro-N-(2-methoxy-ethyl)-7-nitro-2,3-dioxo-6-quinoxaline sulfonamide are obtained, m.p.: 320-321° C.

Provenance & Evidence