HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 979464Generated: October 25, 2026
Hydrazinecarboxylic acid, ethyl ester → Ethyl-3-(1-methyl-2-oxo(2H)quinoxalin-3-yl)carbazate
https://huagongshe.com/reaction/979464
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazinecarboxylic acid, ethyl ester | HCID 20064 | — |
| Reactant | 3-Chloro-1-methyl-1,2-dihydroquinoxalin-2-one | HCID 1471088 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | Ethyl-3-(1-methyl-2-oxo(2H)quinoxalin-3-yl)carbazate | HCID 13192930 | — |
Reaction Steps
A solution of 152 g. (0.78 m.) of 3-chloro-1-methyl-1H-quinoxalin-2-one, 116 g. (1.1 m.) of ethyl carbazate and 1 l. of acetonitrile is refluxed for 16 hours. The mixture is cooled to 9° C. and the product collected by filtration and used directly for cyclization.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04668678 |
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| Source dataset | uspto-grants-1987_05 |
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| ORD ID | ord-342ba776234f489eadfc59b274f77f84 |
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| Source note | uspto-grants-1987_05 |
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