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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 386384Generated: October 25, 2026

Hydrochloric Acid → Ethyl 2-(naphthalen-1-yl)-3-oxobutanoate

https://huagongshe.com/reaction/386384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetic AnhydrideHCID 7918—
Reactantalpha-Naphthaleneacetic acid, ethyl esterHCID 62428—
ReactantLithium HexamethyldisilazideHCID 2733832—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 2-(naphthalen-1-yl)-3-oxobutanoateHCID 54265160—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a solution of ethyl 2-(naphthalen-1-yl)acetate (1 g, 4.7 mmol) in tetrahydrofuran (20 mL) at −78° C. was added LiHMDS (1M THF, 9.4 mL, 9.4 mmol) and the reaction mixture stirred at −78° C. for 1 hour. Acetic anhydride was then added (0.54 mL, 5.64 mmol) dropwise and the reaction allowed to warm to room temperature and stirred for 30 minutes. Aqueous HCl solution (1N, 25 mL) was added to the reaction mixture and then extracted with ethyl acetate, dried over sodium sulfate and concentrated to give compound ethyl 2-(naphthalen-1-yl)-3-oxobutanoate as a light yellow oil, that was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08372807B2
Source datasetuspto-grants-2013_02
ORD IDord-900794aa6d0849628b825587973780c5
Source noteuspto-grants-2013_02