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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443282Generated: November 2, 2026

Ethanol → HCID 17989170, compound

https://huagongshe.com/reaction/1443282

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
ReactantHCID 17989292HCID 17989292—
ProductHCID 17989170HCID 1798917083.7%

Reaction Steps

6.04 g (22.52 mmol) of 4-(3-fluoro-2-methoxy-4-methylphenyl)-4-methyl-2-oxo-pentanoic acid is dissolved in 140 ml of ethanol, mixed with 2.5 ml of sulfuric acid, and refluxed for six hours. The ethanol is drawn off in a rotary evaporator, and the residue is carefully mixed with 300 ml of saturated sodium bicarbonate solution. It is extracted three times with ethyl acetate. The combined organic extracts are washed once with saturated sodium bicarbonate solution and once with brine. After drying, and after the dessicant is filtered off and the solvent is spun in, the residue is chromatographed on silica gel (mobile solvent: ethyl acetate/hexane). 5.58 g (83.7%) of the desired compound is isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659297B2
Source datasetuspto-grants-2010_02
ORD IDord-2c38ff5022f94d2085786c3bf7ed655a
Source noteuspto-grants-2010_02