HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 477775Generated: October 30, 2026
Oxalic acid dihydrate → HCID 178514692, compound
https://huagongshe.com/reaction/477775
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Oxalic acid dihydrate | HCID 61373 | — |
| Reactant | 1,2-Diamino-naphthalene-5-sulfonamide, Hydrochloride | HCID 16640791 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | HCID 178514692 | HCID 178514692 | 122.6% |
Reaction Steps
A mixture of 5,0 g (21,0 mmol) 1,2-diamino-naphthalene-5-sulphonamide hydrochloride salt and 6,0 g oxalic acid dihydrate in 200 ml 2N hydrochloric acid was refluxed for 2,5 h. After cooling to 25° C., the precipitate was filtered off and washed with water. The crude product was recrystallized (dimethylformamide-water) to give 7,5 g (69%) 2,3-dihydroxy-7-sulphamoyl-benzo[f]quinoxaline.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04889855 |
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| Source dataset | uspto-grants-1989_12 |
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| ORD ID | ord-423fb6a001444ae393852f01343f3e8e |
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| Source note | uspto-grants-1989_12 |
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