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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1635543Generated: October 30, 2026

Hydrochloric Acid → 1-Ethylcarbonyl-4-oxohomopiperidine

https://huagongshe.com/reaction/1635543

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl chloroformateHCID 10928—
ReactantPotassium CarbonateHCID 11430—
ReactantAzepan-4-oneHCID 1501891—
SolventTetrahydrofuranHCID 8028—
Product1-Ethylcarbonyl-4-oxohomopiperidineHCID 18675736—

Reaction Steps

To a cold (0° C.) stirred solution of 4-oxohomopiperidine.HCl (0.6 g, 4.05 mmol), K2CO3 (0.615 g, 4.46 mmol) in anhydrous THF (10 mL) will be ethyl chloroformate (0.44 mL, 4.05 mmol) dropwise. The reaction was warmed to RT for 2 hrs then quenched with H2O, extracted with EtOAc, and the organic layer dried over Na2SO4. Pure 1-ethylcarbonyl-4-oxohomopiperidine will be isolated via silica gel flash chromatography

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06509346B2
Source datasetuspto-grants-2003_01
ORD IDord-368108f1271e431baa3f70790a96e7f7
Source noteuspto-grants-2003_01