HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1720008Generated: October 29, 2026
Hydrazinecarboxylic acid, ethyl ester → 2-(Ethoxycarbonylhydrazino)-6,7-dichloro-quinoxalin-3(4H)-one
https://huagongshe.com/reaction/1720008
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazinecarboxylic acid, ethyl ester | HCID 20064 | — |
| Reactant | HCID 22419802 | HCID 22419802 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 2-(Ethoxycarbonylhydrazino)-6,7-dichloro-quinoxalin-3(4H)-one | HCID 53970153 | 85% |
Reaction Steps
To a solution of 0.58 g (~2.3 mmol) 2,6,7-trichloroquinoxalin-3(4H)-one in 25 ml of acetonitrile was added 0.27 g (~2.6 mmol) of ethyl carbazate. The reaction mixture was refluxed for 3 h. Cooling to 24° C. gave the title compound (0.62 g; 84%) as a precipitate. M.p. >300° C. decomp.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05504085 |
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| Source dataset | uspto-grants-1996_04 |
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| ORD ID | ord-848fc2b2816b465c94c4bcc8df5fe074 |
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| Source note | uspto-grants-1996_04 |
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