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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1533504Generated: November 2, 2026

Ethanol → HCID 13000823, compound

https://huagongshe.com/reaction/1533504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantDichloromethaneHCID 6344—
ReactantSodium HydroxideHCID 14798—
Reactant4-MethoxybenzaldehydeHCID 31244—
ProductHCID 13000823HCID 13000823—

Reaction Steps

Progress of the reaction is monitored by thin layer chromatography (Silica gel plates, eluent methylene chloride; visualization by dipping in a solution of 5% anisaldehyde in ethanol and heating). When the reaction is complete as judged by thin layer chromatography, the reaction mixture is adjusted to a pH of 13 with 10 M sodium hydroxide and then extracted 3 times with 250 ml of methylene chloride. The pH of the aqueous mixture is then adjusted to 3 with concentrated HCl, followed by continuous extraction with 1 liter of ethyl acetate for 24 hours. The ethyl acetate extract is dried over anhydrous magnesium sulfate and evaporated under reduced pressure to yield (R)-2-phenylbutyrolactone as a yellowish solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06207862B1
Source datasetuspto-grants-2001_03
ORD IDord-1a3bf6a9740d4f098b693681378c179d
Source noteuspto-grants-2001_03