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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 976139Generated: October 30, 2026

Water → 4-[3-(1-Benzylpiperidin-4-yl)propenoyl]nitrobenzene

https://huagongshe.com/reaction/976139

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant1-Benzylpiperidine-4-carbaldehydeHCID 89584—
ReactantDiethyl [2-(4-nitrophenyl)-2-oxoethyl]phosphonateHCID 11808775—
SolventTetrahydrofuranHCID 8028—
Product4-[3-(1-Benzylpiperidin-4-yl)propenoyl]nitrobenzeneHCID 5700970556.5%

Reaction Steps

Under ice cooling, 0.40 g of 64% sodium hydride was added to 3.03 g of diethyl (4-nitrobenzoylmethyl)phosphonate dissolved in 30 ml of tetrahydrofuran. After about 10 minutes, 4.07 g of 4-formyl-1-benzylpiperidine was added to the mixture. The mixture was stirred under ice cooling for 30 minutes and then stirred at room temperature for about 16 hours. After completion of the reaction, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was removed under reduced pressure. The obtained residue was applied to silica gel column chromatography to obtain 1.99 g of the title compound as pale yellow crystal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05610303
Source datasetuspto-grants-1997_03
ORD IDord-cdb701cf1512468aa09eb13936e1f2f9
Source noteuspto-grants-1997_03