Potassium Nitrate → HCID 10538061, compound

HRID 1974478Notes

Reaction equation

HRID 1974478 reaction equation
[F:1][C:2]1[CH:11]=[C:10]2[C:5]([NH:6][C:7](=[O:14])[C:8](=[O:13])[N:9]2[OH:12])=[CH:4][CH:3]=1.[N+:15]([O-])([O-:17])=[O:16].[K+]>S(=O)(=O)(O)O>[F:1][C:2]1[CH:11]=[C:10]2[C:5]([NH:6][C:7](=[O:14])[C:8](=[O:13])[N:9]2[OH:12])=[CH:4][C:3]=1[N+:15]([O-:17])=[O:16]

Participants

4

Reactant 2

HCID 24434Potassium NitrateHCID 106317237-Fluoro-1,4-dihydro-1-hydroxy-2,3-quinoxalinedione

Product 1

HCID 10538061HCID 10538061, compoundYield 50%

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Procedure

In 20 ml of sulfuric acid was dissolved 1.34 g of 7-fluoro-1-hydroxyquinoxaline-2,3-(1H,4H)-dione followed by addition of 0.76 g of potassium nitrate under ice-cooling. The mixture was cooled to at room temperature, and after 1 hour, the reaction mixture was poured in ice-water. The resulting crystals were recovered by filtration, rinsed with water and recrystallized from ethanol-water to provide 0.82 g (50%) of 7-fluoro-1-hydroxy-6-nitroquinoxaline-2,3-(1H,4H)-dione.

Workup

  1. temperaturecooling
  2. filtrationThe resulting crystals were recovered by filtration
  3. washrinsed with water
  4. customrecrystallized from ethanol-water

Sources & evidence

ORD record
ord-f7783c68729e481f96db7308b22692fc
Source dataset
uspto-grants-1994_02
Patent number
US05283244

Reaction notes

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