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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 544489Generated: October 30, 2026

Ethyl isothiocyanate → N-Ethyl-4-(6-methoxypyrazin-2-yl)piperazine-1-carbothioamide

https://huagongshe.com/reaction/544489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl isothiocyanateHCID 10966—
Reactant2-Methoxy-6-(piperazin-1-yl)pyrazineHCID 13318698—
SolventDiethyl EtherHCID 3283—
ProductN-Ethyl-4-(6-methoxypyrazin-2-yl)piperazine-1-carbothioamideHCID 13318699—

Reaction Steps

To a solution of 1.94 g. of 1-(6-methoxypyrazinyl)piperazine in 25 ml. of anhydrous ether is added dropwise a solution of 0.87 g. of ethylisothiocyanate in 25 ml. of anhydrous ether. The mixture is stirred 30 minutes and the solid collected and recrystallized from 80% ethanol, giving 2.27 g. of the desired product as white crystals, m.p. 120°-122° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04450272
Source datasetuspto-grants-1984_05
ORD IDord-b4be1bf0789641648b4f5822d96edc28
Source noteuspto-grants-1984_05