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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2299866Generated: November 2, 2026

Dimethylformamide → ethyl (8E)-8-phenyl-8-[[4-[(5-phenyl-1,2,4-oxadiazol-3-yl)methoxy]phenyl]methoxyimino]octanoate

https://huagongshe.com/reaction/2299866

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant3-(Chloromethyl)-5-phenyl-1,2,4-oxadiazoleHCID 302154—
Reactantethyl (8E)-8-[(4-hydroxyphenyl)methoxyimino]-8-phenyloctanoateHCID 22344573—
SolventWaterHCID 962—
SolventEthyl acetate hexaneHCID 21226206—
Productethyl (8E)-8-phenyl-8-[[4-[(5-phenyl-1,2,4-oxadiazol-3-yl)methoxy]phenyl]methoxyimino]octanoateHCID 2234461432%

Reaction Steps

A mixture of 3-chloromethyl-5-phenyl-1,2,4-oxadiazole (335 mg), ethyl E-8-(4-hydroxybenzyloxyimino)-8-phenyloctanoate (600 mg), potassium carbonate (432 mg) and N,N-dimethylformamide (7 ml) was stirred at room temperature for 18 hours. 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-phenyl-8-[4-(5-phenyl-1,2,4-oxadiazol-3-ylmethoxy)benzyloxyimino]octanoate (267 mg, yield 32%) 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-3d7101afffcf41eb941baa500ed9f9a6
Source noteuspto-grants-2002_12