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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 386748Generated: October 30, 2026

Pyridine → 4,4,4-Trifluoro-3-hydroxy-1-(4-methylphenyl)-3-[3-(trifluoromethyl)phenyl]butan-1-one oxime

https://huagongshe.com/reaction/386748

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant4,4,4-Trifluoro-3-hydroxy-1-(4-methylphenyl)-3-[3-(trifluoromethyl)phenyl]butan-1-oneHCID 86643379—
SolventEthanolHCID 702—
Solventtert-Butyl methyl etherHCID 15413—
Product4,4,4-Trifluoro-3-hydroxy-1-(4-methylphenyl)-3-[3-(trifluoromethyl)phenyl]butan-1-one oximeHCID 8664338096.2%

Reaction Steps

A solution of 4,4,4-trifluoro-3-hydroxy-1-(4-methylphenyl)-3-[3-(trifluoromethyl)phenyl]butan-1-one (1.0 g), hydroxylamine hydrochloride (0.28 g) and pyridine (0.42 g) in ethanol (10 mL) was heated to reflux for 5 hours. After the reaction solution was diluted with t-butylmethylether, the solution was washed with water and saturated brine. The organic layer was dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to yield 4,4,4-trifluoro-3-hydroxy-1-(4-methylphenyl)-3-[3-(trifluoromethyl)phenyl]butan-1-one oxime (1.0 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08372867B2
Source datasetuspto-grants-2013_02
ORD IDord-a71517224ae149a8994d67e47a7c068f
Source noteuspto-grants-2013_02