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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 68319Generated: October 25, 2026

Hydroxylamine HCl → Diethyl 2,2'-((5-(1-(hydroxyimino)ethyl)oxazol-2-yl)azanediyl)diacetate

https://huagongshe.com/reaction/68319

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxylamine HClHCID 21645—
ReactantSodium AcetateHCID 517045—
ReactantDiethyl 2,2'-((5-acetyloxazol-2-yl)azanediyl)diacetateHCID 68282007—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductDiethyl 2,2'-((5-(1-(hydroxyimino)ethyl)oxazol-2-yl)azanediyl)diacetateHCID 8669962780%

Reaction Steps

To a solution of diethyl 2,2′-((5-acetyloxazol-2-yl)azanediyl)diacetate (300 mg, 1.01 mmoles) in ethanol (6 mL), a solution of sodium acetate (165 mg, 2.01 mmoles) and hydroxylammonium chloride (139 mg gm, 2.01 mmoles) in water (2 ml) was added and the reaction mixture was refluxed for 1 h. The reaction mixture was cooled to room temperature and solvent was evapourated in vacuum. The residue was diluted with ice cold water and extracted with ethyl acetate. The combined ethyl acetate extract was washed with water & brine, dried over sodium sulphate and evaporated under reduced pressure to yield 252 mg (80%) of title product as thick liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822414B2
Source datasetuspto-grants-2014_09
ORD IDord-408cfd8f82b84c36a51f220cd42224fb
Source noteuspto-grants-2014_09