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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 499554Generated: October 25, 2026

Tetrahydrofuran → 2-Cyano-6-methylthiopyrazine

https://huagongshe.com/reaction/499554

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantEthyl AcetateHCID 8857—
Reactant6-Chloropyrazine-2-carbonitrileHCID 81303—
ReactantSodium methanethiolateHCID 4378561—
SolventWaterHCID 962—
Product2-Cyano-6-methylthiopyrazineHCID 2293928183%

Reaction Steps

A mixture of 2-chloro-6-cyanopyrazine (1.40 g, 10.0 mmol), sodium thiomethoxide (0.78 g, 11.0 mmol) and THF (100 ml) was refluxed for 2 hrs. The reaction mixture was combined with ethyl acetate and water. The organic layer was washed with saturated brine and dried over magnesium sulfate. The solvent was evaporated to give the titled compound (1.25 g, 83%) as pale yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07767665B2
Source datasetuspto-grants-2010_08
ORD IDord-10c916b4118a4d4fb5af290e415fd27f
Source noteuspto-grants-2010_08