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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1431447Generated: November 3, 2026

Stannous chloride dihydrate → HCID 59631200, compound

https://huagongshe.com/reaction/1431447

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStannous chloride dihydrateHCID 61436—
ReactantHCID 59631376HCID 59631376—
SolventEthyl AcetateHCID 8857—
ProductHCID 59631200HCID 59631200—

Reaction Conditions

Temperature65 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08940724B2
Source datasetuspto-grants-2015_01
ORD IDord-5f80a9ca9238464a9f8d89b4343b760e
Source noteuspto-grants-2015_01