HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1266915Generated: November 1, 2026
Hydrazine hydrate (1:1) → 3-hydrazinyl-2,5-dimethylPyrazine
https://huagongshe.com/reaction/1266915
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | 3-Chloro-2,5-dimethylpyrazine | HCID 66771 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 3-hydrazinyl-2,5-dimethylPyrazine | HCID 15255095 | 27.9% |
Reaction Steps
A reaction flask was loaded with 2-chloro-3,6-dimethylpyrazine (10 g) and ethanol (15 ml), and heated up to 50° C. with stirring. To this, a mixture of hydrazine monohydrate (11.2 g) and ethanol (10 ml) was dropwise added in one hour. The temperature was raised to the reflux temperature, followed by stirring for six hours. The heating was stopped and the reaction mixture was condensed by an evaporator. The precipitated crystals were filtrated for collection and dried to give 2-hydrazino-3,6-dimethylpyrazine (2.7 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06551682B1 |
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| Source dataset | uspto-grants-2003_04 |
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| ORD ID | ord-eef0d3536fe644108ea70105a100e44b |
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| Source note | uspto-grants-2003_04 |
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