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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 532125Generated: October 31, 2026

Hydroxyamine hydrochloride → HCID 85960732, compound

https://huagongshe.com/reaction/532125

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
Reactant6-methoxy-3,4-dihydro-2H-1-benzopyran-4-oneHCID 4612168—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 85960732HCID 85960732—

Reaction Conditions

Temperature65 °C

Reaction Steps

5.2 g (29.2 mmol) of 6-methoxychroman-4-one were dissolved in ethanol and 2.53 g (36.5 mmol) hydroxylamine hydrochloride and 2.99 g (36.5 mmol) sodium acetate dissolved in 10 ml of water were added. The mixture was stirred at 65° C. for 1.5 hours. The mixture was allowed to cool to room temperature and concentrated. The residue was dissolved in methyl-tert-butylether. The organic phase was washed with water, dried over MgSO4 and concentrated to give 5.6 g (29.4 mmol, quant.) of crude product, which was directly used in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853196B2
Source datasetuspto-grants-2014_10
ORD IDord-ac88c1d315124f74bf323645dd536750
Source noteuspto-grants-2014_10