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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 544578Generated: November 4, 2026

2-Amino-6-Chloropyrazine → 2-Chloro-6-(3-[2,2,2-trifluoroethyl]thioureido)pyrazine

https://huagongshe.com/reaction/544578

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-6-ChloropyrazineHCID 118458—
Reactant1,1,1-Trifluoro-2-isothiocyanatoethaneHCID 13883777—
SolventAcetonitrileHCID 6342—
Product2-Chloro-6-(3-[2,2,2-trifluoroethyl]thioureido)pyrazineHCID 54483419—

Reaction Steps

2,2,2-Trifluoroethylisothiocyanate (6 ml.) was added to 2-amino-6-chloropyrazine (6 g.) in acetonitrile (50 ml.) and the mixture heated under reflux on the steam bath for 6 hours. On cooling the precipitated solid was recrystallised from toluene to give 2-chloro-6-(3-[2,2,2-trifluoroethyl]thioureido)pyrazine, m.p. 170°-172°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04451463
Source datasetuspto-grants-1984_05
ORD IDord-ef5b275e22484a1295d2fff26fe41d53
Source noteuspto-grants-1984_05