HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 861486Generated: November 1, 2026
Sodium Nitrate → Ethyl N-(1-cyclohexyl-7-nitro-2,3(1H,4H)-quinoxalinedion-6-yl)oxamate
https://huagongshe.com/reaction/861486
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Nitrate | HCID 24268 | — |
| Reactant | Ethyl N-(1-cyclohexyl-2,3(1H,4H)-quinoxalinedion-6-yl)oxamate | HCID 22097144 | — |
| Solvent | Sulfuric Acid | HCID 1118 | — |
| Product | Ethyl N-(1-cyclohexyl-7-nitro-2,3(1H,4H)-quinoxalinedion-6-yl)oxamate | HCID 22097075 | 93.2% |
Reaction Steps
48 g (0.133 mol) of ethyl N-(1-cyclohexyl-2,3(1H,4H)-quinoxalinedion-6-yl)oxamate were dissolved in 11 of concentrated sulfuric acid and, at 0° C., 11.35 g (0.133 mol) of sodium nitrate were added a little at a time. The mixture was stirred at 0° C. for a further 2 h and poured into a large quantity of ice. The precipitate was filtered off with suction to yield 50.1 g (93%) of the product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05714489 |
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| Source dataset | uspto-grants-1998_02 |
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| ORD ID | ord-7e4c24da394c4efcb0f1513404fddf2d |
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| Source note | uspto-grants-1998_02 |
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