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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2299823Generated: November 2, 2026

Acetic Acid → ethyl Z-8-[4-(5-methyl-2-phenyl4-oxazolylmethoxy)benzyloxyimino]-8-phenyloctanoate

https://huagongshe.com/reaction/2299823

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantSodium AcetateHCID 517045—
ReactantEthyl 8-oxo-8-phenyloctanoateHCID 10934282—
Reactant4-(5-Methyl-2-phenyl4-oxazolylmethoxy)benzyloxyamineHCID 22344593—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventEthyl acetate hexaneHCID 21226206—
Productethyl Z-8-[4-(5-methyl-2-phenyl4-oxazolylmethoxy)benzyloxyimino]-8-phenyloctanoateHCID 1109288676%

Reaction Steps

After a mixture of 4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyamine (1.50 g), ethyl 8-oxo-8-phenyloctanoate (2.54 g), acetic acid (0.830 ml), sodium acetate (793 mg) and ethanol (40 ml) was heated to reflux for 18 hours, the mixture was cooled to room temperature. Water was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain ethyl E-8-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyimino]-8-phenyloctanoate (2.02 g, yield 76%) as a colorless oil from an ethyl acetate-hexane (1:5, v/v)-eluted fraction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06495581B1
Source datasetuspto-grants-2002_12
ORD IDord-208f9f5ea34d486b8f1430b66f2c32da
Source noteuspto-grants-2002_12