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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1755987Generated: November 2, 2026

Hydroxylamine → HCID 136444127, compound

https://huagongshe.com/reaction/1755987

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxylamineHCID 787—
ReactantWaterHCID 962—
ReactantSodium AcetateHCID 517045—
Reactant1-[4-(Trifluoromethyl)pyridin-2-yl]ethanoneHCID 10330130—
SolventEthanolHCID 702—
ProductHCID 136444127HCID 13644412777.2%

Reaction Steps

A solution of 2-acetyl-4-trifluoromethylpyridine (1.2 g), hydroxylamine (0.495 g) and sodium acetate (2.2 g) in a mixture of ethanol:water (20:10 ml) was heated under reflux for 2 hours. The reaction mixture was poured into water and extracted with ethyl acetate (×2). The combined extracts were washed with water, dried and concentrated to give a solid which was washed with hexane to give (E)-2-acetyl-4-trifluoromethylpyridine oxime (1.0 g, 77% yield) as a pale pink solid; 1H NMR (270 MHz): δ2.39(3H,s), 7.47(1H,d), 7.89(1H,brs), 8.12(1H,s), 8.12(1H,s), 8.78(1H,d); ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05439910
Source datasetuspto-grants-1995_08
ORD IDord-6b0187027a0246a8a195489cbe853e8c
Source noteuspto-grants-1995_08