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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26313Generated: October 26, 2026

Water → Ethyl alpha-phthalimidopentanoate

https://huagongshe.com/reaction/26313

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantChloroformHCID 6212—
ReactantEthyl 2-bromovalerateHCID 79071—
ReactantPhthalimide potassium saltHCID 24194345—
SolventDimethylformamideHCID 6228—
ProductEthyl alpha-phthalimidopentanoateHCID 13791337—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of potassium phthalimide (0.1 mole) in about 50 ml of dimethylformamide (DMF) is added 1 equivalent of ethyl-2-bromopentanoate. The temperature is maintained at about 60° C. for 10 minutes. Chloroform is added to the cooled DMF solution and the mixture is poured into water. The phases are separated and the aqueous phase is extracted with chloroform. The chloroform extracts are combined, extracted with 0.1 N sodium hydroxide and with water. After drying over sodium sulfate, the chloroform is removed to give ethyl α-phthalimidopentanoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148998
Source datasetuspto-grants-1979_04
ORD IDord-238e2c7868bf4c0ab667f4ccfcc35579
Source noteuspto-grants-1979_04