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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 221806Generated: October 25, 2026

Ethyl bromoacetate → 4-(4-Methoxy-phenyl)-4-oxo-3-phenyl-butyric acid ethyl ester

https://huagongshe.com/reaction/221806

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantSodium hydrideHCID 24758—
Reactant1-(4-Methoxyphenyl)-2-phenylethan-1-oneHCID 231093—
SolventDimethyl SulfoxideHCID 679—
SolventTolueneHCID 1140—
Product4-(4-Methoxy-phenyl)-4-oxo-3-phenyl-butyric acid ethyl esterHCID 1344150999%

Reaction Steps

A suspension of NaH (12.8 mmol, 512 mg) in DMSO (23 mL) was added 4′-methoxy-2-phenylacetophenone (12.8 mmol, 2.89 g) in 10 ml toluene dropwise under argon. After 30 minutes of stirring, ethyl bromoacetate (1.4 mL, 1 eq.) in 10 mL of toluene was added and the mixture was stirred at rt overnight. The reaction was quenched by addition of 2N HCl (4 mL), and then 60 mL of water. The mixture was extracted with CH2Cl2 (3×30 mL), dried over MgSO4 and concentrated under vacuum overnight to afforded 4.0 g (99%) of 4-(4-methoxy-phenyl)-4-oxo-3-phenyl-butyric acid ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08207168B2
Source datasetuspto-grants-2012_06
ORD IDord-d5dede9e60234ccd97e8138e4cd87ad3
Source noteuspto-grants-2012_06