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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1616056Generated: October 26, 2026

Hydroxyamine hydrochloride → 4,6-Dichloro-5-pyrimidinecarbaldehyde oxime

https://huagongshe.com/reaction/1616056

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
Reactant4,6-Dichloro-5-pyrimidinecarbaldehydeHCID 819691—
SolventEthanolHCID 702—
Product4,6-Dichloro-5-pyrimidinecarbaldehyde oximeHCID 76016516—

Reaction Steps

A mixture of 4,6-dichloro-5-pyrimidinecarbaldehyde (8.00 g, 44.8 mmol), NaOAc (3.7 g, 1.0 eq) and NH2OH.HCl (3.1 g, 1.0 eq) in EtOH (320 mL) was stirred at rt for 2 h. The reaction mixture was filtered, concentrated and purified by column chromatography on silica gel (dry loading, first DCM then DCM/EtOAc, 1/9) to give 4,6-dichloro-5-pyrimidinecarbaldehyde oxime as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765768B2
Source datasetuspto-grants-2014_07
ORD IDord-2ba7717494c54f29b575e8d272a5edbb
Source noteuspto-grants-2014_07