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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 857316Generated: November 3, 2026

Ethyl Acetoacetate → Ethyl 2-(4-chlorobenzyl)acetoacetate

https://huagongshe.com/reaction/857316

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetoacetateHCID 8868—
ReactantSodium hydrideHCID 24758—
Reactant1-(Bromomethyl)-4-chlorobenzeneHCID 69329—
SolventDimethylformamideHCID 6228—
ProductEthyl 2-(4-chlorobenzyl)acetoacetateHCID 275740463.8%

Reaction Steps

To a suspension of NaH (1.6 g, 40 mmol) in DMF (60 mL) at 0° C. was added ethyl acetoacetate (5.7 g, 44 mmol). The mixture was stirred for 30 minutes and p-chlorobenzyl bromide (8.2 g, 40 mmol) was added. The reaction mixture was stirred at r.t. for 2 hours and then quenched with water and extracted with EtOAc. The combined organic layers were washed with water and brine, dried over Na2SO4 and concentrated. The residue was purified by silica gel chromatography eluted with 10% EtOAc in Hexanes to provide 6.5 g of the title compound as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07144913B2
Source datasetuspto-grants-2006_12
ORD IDord-6868f67116934c86987035037a44948e
Source noteuspto-grants-2006_12