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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 476582Generated: October 30, 2026

Sodium hydride → HCID 53816239, compound

https://huagongshe.com/reaction/476582

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantBenzyl bromoacetateHCID 62576—
Reactant2(3H)-Benzofuranone, 3-propyl-HCID 11819562—
SolventDimethylformamideHCID 6228—
ProductHCID 53816239HCID 5381623985%

Reaction Steps

A solution of 0.204 mol of 2,3-dihydro-2-oxo-3-propylbenzofuran in 200 ml of anhydrous dimethylformamide is added to a suspension of 0.204 mol of sodium hydride in 100 ml of anhydrous dimethylformamide. The medium is maintained with stirring at room temperature for one hour, 0.224 mol of benzyl bromoacetate is then added and the medium is left for 12 hours at room temperature. The reaction mixture is concentrated under vacuum and hydrolyzed using one liter of water, the aqueous phase is extracted with twice 250 ml of benzene, the organic phase dried over anhydrous sodium sulfate and the solvent evaporated off. The crystallized residue is washed with isopropyl ether and filtered, yielding 0.173 mol of a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04885299
Source datasetuspto-grants-1989_12
ORD IDord-8a3ec85338554d5692d407f40a3ad65d
Source noteuspto-grants-1989_12