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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1891200Generated: November 1, 2026

Hydroxyamine hydrochloride → HCID 136167206, compound

https://huagongshe.com/reaction/1891200

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantHCID 58732641HCID 58732641—
SolventEthanolHCID 702—
ProductHCID 136167206HCID 13616720659.7%

Reaction Steps

To a solution of 3-(4-bromo-phenyl)-6-chloro-7-hydroxy-4-oxo-4H-chromene-8-carbaldehyde 53.5 mg, 0.14 mmol) in EtOH (6 ml), hydroxylamine hydrochloride (100 mg, 1.4 mmol) was added. The resulting mixture was heated at reflux for 16 hours. EtOH was evaporated and EtOAc (20 ml) was added. The organic layer was washed with sat. NaHCO3 and dried. Solids (33 mg) were obtained when the resulting oil was triturated with ether. 1H NMR (d6-DMSO) δ=9.83 (1H, s); 8.70 (1H, s); 8.21 (1H, s); 7.78 (2H, d) and 7.68 (2H, s). LCMS: (M+1)+=394.1 (RT=8.60 min.)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507480B2
Source datasetuspto-grants-2013_08
ORD IDord-4d1d374aea5e41f88544845a376a5f63
Source noteuspto-grants-2013_08