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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2403603Generated: November 2, 2026

Water → HCID 17852007, compound

https://huagongshe.com/reaction/2403603

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTributylamineHCID 7622—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant4-Chloro-2-methylpyridineHCID 581392—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 17852007HCID 1785200789.6%

Reaction Conditions

Temperature150 °C

Reaction Steps

tert-Butyl piperazine-1-carboxylate (500 mg) was dissolved in NMP (10 ml), and 4-chloro-2-methylpyridine (685 mg) and tri-n-butylamine (498 mg) were added thereto, followed by stirring at 150° C. overnight. To the reaction mixture was added water, followed by extraction with EtOAc. The organic layer was dried over MgSO4, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to obtain tert-butyl 4-(2-methylpyridin-4-yl)piperazine-1-carboxylate (667 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08802679B2
Source datasetuspto-grants-2014_08
ORD IDord-b69b5136316b46989b4c058d4834681e
Source noteuspto-grants-2014_08