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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1292468Generated: October 30, 2026

Ethyl chloroformate → Ethyl 4-acetamidopiperidine-1-carboxylate

https://huagongshe.com/reaction/1292468

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 numberUS05756743
Source datasetuspto-grants-1998_05
ORD IDord-516fe469e2e0461091e662bebe8f114d
Source noteuspto-grants-1998_05