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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2289528Generated: October 31, 2026

4,6-Dichloropyrimidine → 4-(4-Benzylpiperazin-1-yl)-6-chloropyrimidine

https://huagongshe.com/reaction/2289528

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,6-DichloropyrimidineHCID 70943—
Reactant1-BenzylpiperazineHCID 75994—
ReactantDiisopropylethylamineHCID 81531—
SolventP-XyleneHCID 7809—
Product4-(4-Benzylpiperazin-1-yl)-6-chloropyrimidineHCID 18698052—

Reaction Conditions

Temperature138 °C

Reaction Steps

A mixture of 4,6-dichioropyrimidine (29.5 g), N-benzylpiperazine (44.0 g) and DIPEA (44 ml) was suspended in p-xylene (400 ml) and heated at 138° C. under reflux. After 18 hours the reaction mixture was allowed to cool to room temperature and filtered. The filtrate was evaporated using high vacuum pump apparatus to obtain 1-(benzyl)-4-(4-chloropyrimidin-6-yl)piperazine a brown solid, 60.5 g (105% based on 4,6-dichloropyrimidine);

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06093718
Source datasetuspto-grants-2000_07
ORD IDord-a3c3fab9069f4f7b885d5509c7bd11f2
Source noteuspto-grants-2000_07