Sodium Nitrate → HCID 22097090, compound
Reaction equation
[C:1]([CH2:4][N:5]1[C:14]2[C:9](=[CH:10][CH:11]=[C:12]([Cl:15])[CH:13]=2)[NH:8][C:7](=[O:16])[C:6]1=[O:17])([OH:3])=[O:2].[N+:18]([O-])([O-:20])=[O:19].[Na+]>S(=O)(=O)(O)O>[C:1]([CH2:4][N:5]1[C:14]2[C:9](=[CH:10][C:11]([N+:18]([O-:20])=[O:19])=[C:12]([Cl:15])[CH:13]=2)[NH:8][C:7](=[O:16])[C:6]1=[O:17])([OH:3])=[O:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
13.0 g (51 mmol) of 1-(carboxymethyl)-7-chloro-2,3(1H,4H)-quinoxalinedione were dissolved in 150 ml of concentrated sulfuric acid and, at 0° C., 4.3 g (51 mmol) of sodium nitrate were added a little at a time. The mixture was stirred at room temperature for 2 h and then poured into ice-water, and the precipitate was filtered off with suction to yield 10.2 g (67%) of the product. Melting point >280° C.
Workup
- filtrationthe precipitate was filtered off with suction
Sources & evidence
- ORD record
- ord-2829199aa14f42b9a67eb28a9c5b6bc0
- Source dataset
- uspto-grants-1998_02
- Patent number
- US05714489
Reaction notes
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