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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 544488Generated: October 30, 2026

Quipazine → N-Ethyl-4-(quinolin-2-yl)piperazine-1-carbothioamide

https://huagongshe.com/reaction/544488

Reaction equation

Participants

RoleNameHCIDCharge
ReactantQuipazineHCID 5011—
ReactantEthyl isothiocyanateHCID 10966—
SolventDiethyl EtherHCID 3283—
ProductN-Ethyl-4-(quinolin-2-yl)piperazine-1-carbothioamideHCID 13318697—

Reaction Steps

To a slurry of 4.26 g. of 1-(2-quinolinyl)piperazine in 30 ml. of anhydrousether is added dropwise a solution of 1.74 g. of ethyl isothiocyanate in 30ml. of anhydrous ether. The mixture is stirred for one hour and the resulting solid is collected and recrystallized from 150 ml. of ethanol, giving 4.43 g. of the desired product as a white crystalline solid, m.p. 193°-195° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04450272
Source datasetuspto-grants-1984_05
ORD IDord-326458202523403b945fdb1e247f5272
Source noteuspto-grants-1984_05