HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 926379Generated: November 2, 2026
Potassium Carbonate → HCID 83826394, compound
https://huagongshe.com/reaction/926379
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | 5-Methoxypyrazine-2-carbonitrile | HCID 53438993 | — |
| Reactant | HCID 178418573 | HCID 178418573 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 83826394 | HCID 83826394 | 4.4% |
Reaction Steps
To a solution of 5-methoxy-pyrazine-2-carbonitrile (1.0 g, 7.4 mmol) in tetrahydrofuran at −78° C. was added dropwise 1 M methylmagnesium bromide (8.14 ml, 8.14 mmol) and the mixture was stirred for 1 h at 25° C. Sodium borohydride (250 mg, 6.62 mmol) was added at −78° C. and the mixture was allowed to warm to 25° C. Aqueous ammonium chloride was added and after addition of excess potassium carbonate the mixture was extracted 3 times with dichloromethane, solvents were evaporated to give 0.05 g (4%) of crude 1-(5-methoxy-pyrazin-2-yl)-ethylamine. LC/MS (method 5): Rt=1.26 min; m/z=154.15 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09284333B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-51cec6153e5848f694da46ba6046785f |
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| Source note | uspto-grants-2016_03 |
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