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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1870830Generated: October 31, 2026

Ethanol → Ethyl alpha-methyl-4-(2-methylpropyl)benzeneacetate

https://huagongshe.com/reaction/1870830

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
ReactantIbuprofen, (+-)-HCID 3672—
ProductEthyl alpha-methyl-4-(2-methylpropyl)benzeneacetateHCID 170486—

Reaction Steps

Under a nitrogen atmosphere, 2-(4-isobutylphenyl)-propionic acid (15.0 g) was dissolved in ethanol (200 ml), and conc. sulfuric acid (1 ml) was added, after which the solution was stirred with heating under reflux for 15 hours. The reaction mixture was cooled to room temperature, concentrated under reduced pressure, diluted with ethyl acetate, and thereafter neutralized with a saturated aqueous sodium bicarbonate solution. After extraction with ethyl acetate, the organic layer was dried over sodium sulfate and then concentrated under reduced pressure to obtain ethyl 2-(4-isobutyl-phenyl)-propionate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06100260
Source datasetuspto-grants-2000_08
ORD IDord-452ebfc58bf84a5c953797ffbddbe9df
Source noteuspto-grants-2000_08