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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884705Generated: November 2, 2026

HCID 11594031, compound → 2-(5-Hydroxy-pyridin-2-yl)-chromen-4-one

https://huagongshe.com/reaction/884705

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 11594031HCID 11594031—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
SolventHydrogen iodideHCID 24841—
Product2-(5-Hydroxy-pyridin-2-yl)-chromen-4-oneHCID 1167313936.2%

Reaction Steps

2-(5-Methoxy-pyridin-2-yl)-chromen-4-one (790 mg, 3.12 mmol) in HI (10 mL) and AcOH (4 mL) was heated at reflux for 6 h. Reaction mixture was cooled to rt, diluted with water, neutralized and extracted with EtOAc to give crude product. This was purified by column chromatography using 5% MeOH in dichloromethane to give (270 mg, 36%) of 2-(5-Hydroxy-pyridin-2-yl)-chromen-4-one. MS (ES) m/z: 240.09 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08242130B2
Source datasetuspto-grants-2012_08
ORD IDord-216a17a503f24780aa4c399a64494fd6
Source noteuspto-grants-2012_08