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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 880352Generated: October 29, 2026

Hydroxyamine hydrochloride → HCID 66759309, compound

https://huagongshe.com/reaction/880352

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantEthyl 4-[2,4-bis(benzyloxy)-6-(4-nitrophenoxy)phenyl]-2,4-dioxobutanoateHCID 66758581—
SolventEthanolHCID 702—
ProductHCID 66759309HCID 6675930982%

Reaction Steps

A stirred solution of ethyl 4-[2,4-bis(benzyloxy)-6-(4-nitrophenoxy)phenyl]-2,4-dioxobutanoate (5 g, 9 mmol) and hydroxylamine hydrochloride (0.74 g, 15 mmol, 1.2 eq) in ethanol (mL 50) was refluxed for 2 hours. The solution was concentrated to a small volume and diluted with ethyl acetate. After washing with brine and drying, the solvent was removed and the residue was carefully chromatographed on silica gel eluting with hexane/ethyl acetate 6/1, to provide the title compound (4.1 g, 82% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08993556B2
Source datasetuspto-grants-2015_03
ORD IDord-5c6648198cf546548555f30d815e969c
Source noteuspto-grants-2015_03