HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Nitrate → 5,6-Dimethyl-7-nitro-1,4-dihydro-quinoxaline-2,3-dione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Nitrate | HCID 24434 | — |
| Reactant | 5,6-Dimethylquinoxaline-2,3-diol | HCID 685581 | — |
| Solvent | Sulfuric Acid | HCID 1118 | — |
| Product | 5,6-Dimethyl-7-nitro-1,4-dihydro-quinoxaline-2,3-dione | HCID 21268092 | — |
Reaction Steps
To a solution of 5,6-dimethyl-1,4dihydro-quinoxaline-2,3-dione (28.5 g, 150 mmol) in concentrated H2SO4 (50 mL) was added KNO3 (15.15 g, 150 mmol) portionwise keeping temperature below 5° C. Reaction mixture was stirred for 2 hours and poured over ice. Yellow precipitate was filtered, washed, and air dried.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06172065B2 |
| Source dataset | uspto-grants-2001_01 |
| ORD ID | ord-23d5b5c36be74c2c9d69697e6bb1e80a |
| Source note | uspto-grants-2001_01 |