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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2289553Generated: October 29, 2026

Hydrochloric Acid → 4-Chloro-6-(piperazin-1-yl)pyrimidine hydrochloride

https://huagongshe.com/reaction/2289553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 4-(6-chloropyrimidin-4-yl)piperazine-1-carboxylateHCID 18697980—
SolventEthyl AcetateHCID 8857—
Product4-Chloro-6-(piperazin-1-yl)pyrimidine hydrochlorideHCID 18697979200.4%

Reaction Steps

Ethyl acetate saturated with gaseous HCl was added to a solution of 1-(tert-butoxycarbonyl)-4-(6-chloro-pyrimidin-4-yl)piperazine (16.80 g) in ethyl acetate (50 ml) and the resulting suspension stirred at ambient temperature for 3 hours. Solvent was evaporated to give (6-chloro-pyrimidin-4-yl)piperazine hydrochloride (13.25 g) as a cream solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06093718
Source datasetuspto-grants-2000_07
ORD IDord-43ece320d2f443b68284d114248a097a
Source noteuspto-grants-2000_07