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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493315Generated: October 30, 2026

Piperazine → 3-(1-Piperazinyl)-2,6,7-trichloroquinoxaline

https://huagongshe.com/reaction/493315

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant2,3,6,7-TetrachloroquinoxalineHCID 4097168—
SolventEthanolHCID 702—
Product3-(1-Piperazinyl)-2,6,7-trichloroquinoxalineHCID 2203624569%

Reaction Steps

Piperazine (0.69 g, 8.06 mmol) was added to a stirred suspension of 2,3,6,7-tetrachloroquinoxaline (1.08 g, 4.03 mmol) in EtOH (125 mL) at room temperature. The mixture was stirred at room temperature for 8 h and filtered to give the product as a pale yellow solid yield 0.88 g (69%); mp >300° C. MS m/z 316/318 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07534794B2
Source datasetuspto-grants-2009_05
ORD IDord-c258b8edda0c498c97cc8e71316b329c
Source noteuspto-grants-2009_05