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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591502Generated: October 27, 2026

2-Chloro-3,5-dimethylpyrazine → 2-Ethenyl-3,5-dimethylpyrazine

https://huagongshe.com/reaction/591502

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-3,5-dimethylpyrazineHCID 11672680—
ReactantPotassium vinyltrifluoroborateHCID 23679353—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventEthanolHCID 702—
Product2-Ethenyl-3,5-dimethylpyrazineHCID 6429268—

Reaction Steps

To a mixture of 2-chloro-3,5-dimethylpyrazine (2 g) and EtOH (20 mL) were added potassium vinyltrifluoroborate (2.067 g) and TEA (2.93 mL) at room temperature, and the mixture was stirred under nitrogen atmosphere. To the mixture was added PdCl2(dppf) (1.026 g), and the mixture was refluxed for 2 h.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238639B2
Source datasetuspto-grants-2016_01
ORD IDord-80f9858156f349028a806eff8d73f561
Source noteuspto-grants-2016_01