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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1859943Generated: October 31, 2026

Sodium hydride → Diethyl 2-(4-benzyloxybenzyl)-2-(3-phenylpropyl)malonate

https://huagongshe.com/reaction/1859943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant4-Benzyloxybenzyl chlorideHCID 70042—
Reactant1,3-Diethyl 2-(3-phenylpropyl)propanedioateHCID 10636312—
SolventTolueneHCID 1140—
SolventDimethylacetamideHCID 31374—
ProductDiethyl 2-(4-benzyloxybenzyl)-2-(3-phenylpropyl)malonateHCID 1862569582.5%

Reaction Steps

Sodium hydride (55% suspension in oil, 0.48 g) was added to a solution of diethyl 2-(3-phenylpropyl)malonate (2.78 g) in a mixture of N,N-dimethylacetamide (10 ml) and toluene (20 ml). The mixture was stirred at ambient temperature for 30 minutes. To the reaction mixture 4-benzyloxybenzyl chloride (2.45 g) was added and the mixture was stirred at ambient temperature for 30 minutes and then at 60° C. for 30 minutes. At the end of this time the reaction mixture was partitioned between ethyl acetate and water. The ethyl acetate layer was separated and dried over anhydrous magnesium sulfate and concentrated. The residue was purified via chromatography on a silica gel column using hexane/ethyl acetate=9/1 as the eluant to afford the desired compound (3.91 g) as a syrup.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06528525B1
Source datasetuspto-grants-2003_03
ORD IDord-989602d102074af5b0f175c6c799e1f4
Source noteuspto-grants-2003_03