HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1485731Generated: November 1, 2026
Ammonium Chloride → HCID 118078852, compound
https://huagongshe.com/reaction/1485731
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | HCID 118080075 | HCID 118080075 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 118078852 | HCID 118078852 | 63% |
Reaction Steps
Iron powder (0.101 g, 1.811 mmol) was added to a solution of (S)-2-(6-bromo-4-nitropyridin-3-ylamino)propane-1-ol (0.050 g, 0.181 mmol) and ammonium chloride (2.422 mg, 0.045 mmol) in ethanol (2.0 mL) and water (0.7 mL). The reaction mixture was heated at 80° C. for 2 h. The mixture was cooled to room temperature and filtered through celite (washing with methanol). The filtrate was concentrated and the residue was partitioned between ethyl acetate and saturated aqueous sodium bicarbonate solution. The aqueous phase was separated and extracted with ethyl acetate. The combined organic phases were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford (S)-2-(4-amino-6-bromopyridin-3-ylamino)propane-1-ol (0.028 g, 63%) as a purple solid. MS (ESI, pos. ion) m/z 246, 248.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09422281B2 |
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| Source dataset | uspto-grants-2016_08 |
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| ORD ID | ord-5ef49d1cefb04426bffe5b82a55e45cd |
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| Source note | uspto-grants-2016_08 |
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