HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1431447Generated: November 3, 2026
Stannous chloride dihydrate → HCID 59631200, compound
https://huagongshe.com/reaction/1431447
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Stannous chloride dihydrate | HCID 61436 | — |
| Reactant | HCID 59631376 | HCID 59631376 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 59631200 | HCID 59631200 | — |
Reaction Steps
To a stirred mixture of as 5-bromo-2-(3,6-dihydro-2H-pyran-4-yl)-3-nitropyridine (0.19 g, 0.69 mmol) in EtOAc (10 mL) was added tin(II) chloride dihydrate (0.78 g, 3.48 mmol) in portions. Upon complete addition of the reducing agent, the mixture was carefully heated to 65° C. After 19 h, the reaction was cooled to rt and diluted with EtOAc, then washed with 1M NaOH (20 mL), water (20 mL), and brine (20 mL). After drying over anhydrous sodium sulfate and filtration, the organic solvent was removed under reduced pressure. The residue was identified as mostly 5-bromo-2-(3,6-dihydro-2H-pyran-4-yl)-3-pyridinamine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08940724B2 |
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| Source dataset | uspto-grants-2015_01 |
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| ORD ID | ord-5f80a9ca9238464a9f8d89b4343b760e |
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| Source note | uspto-grants-2015_01 |
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