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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1975953Generated: November 2, 2026

1-Methylpiperazine → Ethyl 2-(4-methylpiperazin-1-yl)pyridine-4-carboxylate

https://huagongshe.com/reaction/1975953

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
ReactantEthyl 2-chloroisonicotinateHCID 2762942—
ProductEthyl 2-(4-methylpiperazin-1-yl)pyridine-4-carboxylateHCID 276248350%

Reaction Steps

A solution of 5.56 g (30 mmol) 2-chloro-isonicotinic acid ethyl ester in 20 ml 1-methylpiperazine was heated for 5 hrs at 90° C. The solvent was evaporated and the residue purified by chromatography to give 3.72 g (50%) of the title compound as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06225316B1
Source datasetuspto-grants-2001_05
ORD IDord-905bd170a4374e3b92b4fe20bf2d5aad
Source noteuspto-grants-2001_05