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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 12598Generated: October 29, 2026

Hydroxyamine hydrochloride → HCID 59339521, compound

https://huagongshe.com/reaction/12598

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant1-Butanone, 1-[4-(trifluoromethyl)phenyl]-HCID 11378921—
SolventEthanolHCID 702—
ProductHCID 59339521HCID 5933952183%

Reaction Steps

To a solution of 1-[4-(trifluoromethyl)phenyl]butan-1-one (6 g, 27.8 mmol) in ethanol (60 ml) was added hydroxylamine hydrochloride (5.79 g, 83.3 mmol) and the reaction heated to reflux and stirred for 16 h. The reaction was allowed to cool to room temperature and then concentrated in vacuo. The residue was taken up in ethyl acetate, washed twice with water, dried over sodium sulfate and concentrated in vacuo. The crude oxime was then dissolved in ethanol (100 ml) and Raney nickel (approx 1 g) added. The reaction was stirred under a balloon of hydrogen for 72 h. The reaction was filtered though celite (washing with ethanol) concentrated in vacuo, adsorbed onto silica gel and purified by flash column (50-80% ethyl acetate in hexanes) to yield the title compound (5 g, 83%) as colourless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07728022B2
Source datasetuspto-grants-2010_06
ORD IDord-945f48425f244a0f908f48acbe24b21e
Source noteuspto-grants-2010_06