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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 922517Generated: October 26, 2026

Citric Acid → 3-(2-Oxopiperidin-1-yl)benzoic acid

https://huagongshe.com/reaction/922517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantWaterHCID 962—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantMethyl 3-(2-oxopiperidin-1-yl)benzoateHCID 10681135—
SolventTetrahydrofuranHCID 8028—
Product3-(2-Oxopiperidin-1-yl)benzoic acidHCID 2468903932.4%

Reaction Steps

To a solution of methyl 3-(2-oxopiperidin-1-yl)benzoate (114 mg) described in a document (J. Med. Chem. 1997, 40, 331.) in THF (3.0 mL)-water (0.5 mL) was added lithium hydroxide monohydrate (61.5 mg). The mixture was stirred at room temperature overnight, and 10% citric acid solution was added. The mixture was extracted with ethyl acetate, and the extract was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to give the title compound (34.7 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278931B2
Source datasetuspto-grants-2016_03
ORD IDord-60f1d1cb98254027a17f4cff1677dd2f
Source noteuspto-grants-2016_03