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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493321Generated: October 30, 2026

Potassium Carbonate → HCID 22036329, compound

https://huagongshe.com/reaction/493321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2,3-DichloropyrazineHCID 78575—
Reactant1-Benzyl-3-methylpiperazineHCID 2727520—
SolventDiethyl EtherHCID 3283—
SolventAcetonitrileHCID 6342—
ProductHCID 22036329HCID 2203632928%

Reaction Conditions

Temperature115 °C

Reaction Steps

A mixture of 2,3-dichloropyrazine (0.332 g, 2.23 mmol), 1-benzyl-3-methylpiperazine* (0.423 g, 2.23 mmol), and K2CO3 (0.339 g, 2.45 mmol) in acetonitrile (2.5 mL) was stirred at 115° C. for 17 h in a sealed tube. The reaction mixture was diluted with ether, filtered, and concentrated. The brownish oily residue was purified by chromatography on silica gel using n-hexane/EtOAc (7:3) as eluent to give 0.19 g (28%) of the title product as a viscous oil that was sufficiently pure for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07534794B2
Source datasetuspto-grants-2009_05
ORD IDord-f07aaa3afcd3483fb30e5cc4d49ba8d2
Source noteuspto-grants-2009_05