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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 219763Generated: October 26, 2026

Cyanoacetic acid → (1-Ethyl-1,2,3,6-tetrahydropyrid-4-yl)acetonitrile

https://huagongshe.com/reaction/219763

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanoacetic acidHCID 9740—
Reactant1-Ethylpiperidin-4-oneHCID 77159—
SolventTolueneHCID 1140—
Product(1-Ethyl-1,2,3,6-tetrahydropyrid-4-yl)acetonitrileHCID 66602178122.6%

Reaction Steps

2.9 g of 1-ethyl-4-piperidone, 3.3 g of cyanoacetic acid and 36 ml of toluene are placed in a round-bottomed flask equipped with a magnetic stirrer, and under a stream of nitrogen. The mixture is refluxed for 4 hours, while removing the water using Markusson apparatus. The solvent is evaporated off under vacuum. 4.2 g of oil are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08202871B2
Source datasetuspto-grants-2012_06
ORD IDord-9a34e0d9277f498ebb1ff39c1fbc7ffc
Source noteuspto-grants-2012_06