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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 404558Generated: November 1, 2026

Piperazine → 1-(3-Chloropyridin-2-yl)piperazine

https://huagongshe.com/reaction/404558

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant2,3-DichloropyridineHCID 16988—
Reactant3-(Trimethylsilyl)anilineHCID 12488883—
Product1-(3-Chloropyridin-2-yl)piperazineHCID 1141294486.8%

Reaction Steps

Compound A-11 can be synthesized according to method 1. Just of Scheme 1, R1 is —Cl; R2 is —H; R3 is m-SiMe3. More specifically, compound 1 is 2,3-dichloro pyridine (2 g); compound 2 is piperazine; the synthesized compound 3 is 1-(3-chloro-2-pyridyl)piperazine (2.3 g, yield about 86.8%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08748610B2
Source datasetuspto-grants-2014_06
ORD IDord-fd218f21c9594b99a64631b3cc2e3aec
Source noteuspto-grants-2014_06