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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 600422Generated: October 30, 2026

Hydroxyamine hydrochloride → HCID 72363102, compound

https://huagongshe.com/reaction/600422

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
Reactant8-Fluoro-2,3-dihydro-4H-1-benzopyran-4-oneHCID 13953817—
ProductHCID 72363102HCID 72363102—

Reaction Steps

A round bottom flask was charged with 8-fluorochroman-4-one (8.2 g), hydroxylamine hydrochloride (3.78 g) and sodium acetate (4.46 g). A reflux condenser was added, the flask was purged with argon, dry EtOH (20 mL) was added, and the mixture was stirred at reflux for 18 hours. The solution was cooled to room temperature, diluted with EtOAc, and washed with water. The organic phase was dried, and evaporated to give the intermediate 8-fluorochroman-4-one oxime (4), which was reduced with Raney Nickel in EtOH at 50 PSI to yield the title amine (5) (4.69 g, 57%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902187B2
Source datasetuspto-grants-2011_03
ORD IDord-d4de2a6a00234d4c8ca6508be5889562
Source noteuspto-grants-2011_03