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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 478483Generated: October 31, 2026

Potassium Iodide → 1-[(4-Chlorophenyl)methyl]piperidin-4-one

https://huagongshe.com/reaction/478483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
Reactant1-Chloro-4-(chloromethyl)benzeneHCID 7723—
ReactantCesium carbonateHCID 10796—
Reactant4-PiperidoneHCID 33721—
SolventEthyl ketoneHCID 7288—
Product1-[(4-Chlorophenyl)methyl]piperidin-4-oneHCID 10561067—

Reaction Steps

Dissolve 4-piperidone (17 mmol) in 3-pentanone (25 mL) and heat to reflux. Add cesium carbonate (19 mmol) and a catalytic amount of potassium iodide, followed by 4-chlorobenzyl chloride (20 mmol). Stir and reflux for 4 hours. Filter the hot suspension, wash the residue with hot acetone (4×20 mL), combine the filtrate and washings, and evaporate the solvent in vacuo to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06642231B2
Source datasetuspto-grants-2003_11
ORD IDord-fce42884432e4682b6dacf9b981b421f
Source noteuspto-grants-2003_11