HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50577Generated: October 26, 2026
Sodium hydride → 1-(Pyrazin-2-yl)-1H-imidazole-4-carbaldehyde
https://huagongshe.com/reaction/50577
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Chloropyrazine | HCID 73277 | — |
| Reactant | 1H-Imidazole-4-carbaldehyde | HCID 76428 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1-(Pyrazin-2-yl)-1H-imidazole-4-carbaldehyde | HCID 22735183 | 99.4% |
Reaction Steps
Sodium hydride (60% in oil, 720 mg, 18.0 mmol) was added to a 0° C. solution of 1H-imidazole-4-carboxaldehyde (2.20 g, 18.0 mmol) in DMF (8 mL). After stirring for 20 min at 0° C., the mixture was allowed to warm to RT and a solution of 2-chloropyrazine (2.06 g, 17.9 mmol) in DMF (4 mL) was added. The resulting mixture was heated to 100° C. for 18 h. The solvent was evaporated, the residue was dissolved in ethyl acetate, washed with water and brine, dried (MgSO4), and concentrated to provide 3.10 g (86%) of the title compound. MS 175 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06713455B2 |
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| Source dataset | uspto-grants-2004_03 |
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| ORD ID | ord-0326d4b48151442e9091b15321845211 |
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| Source note | uspto-grants-2004_03 |
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