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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1017548Generated: October 30, 2026

Ethyl chloroformate → Ethyl 4-acetamidopiperidine-1-carboxylate

https://huagongshe.com/reaction/1017548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl chloroformateHCID 10928—
ReactantSodium BicarbonateHCID 516892—
Reactant4-AcetamidopiperidineHCID 1445156—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductEthyl 4-acetamidopiperidine-1-carboxylateHCID 18403966103.2%

Reaction Steps

A solution of 4-acetamidopiperidine (20.7 g), sodium bicarbonate (10.6 g) and water (300 ml) was cooled to 0° C., and 17.7 g of ethyl chloroformate was added dropwise, with stirring. Upon completion of the addition, the reaction mixture was allowed to warm to ambient temperature and was diluted with water and ethyl acetate. The layers were separated, and the organic layer was washed with saturated sodium chloride solution, dried over anhydrous magnesium sulfate and filtered. The filtrate was evaporated to give 32.2 g (100%) of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06479501B2
Source datasetuspto-grants-2002_11
ORD IDord-61fbb833083e4e3aa2a632c22d4d75b2
Source noteuspto-grants-2002_11