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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2191609Generated: October 31, 2026

Methanol → Ethyl 2-(3-chloropyrazin-2-yl)hydrazinecarbonothioylcarbamate

https://huagongshe.com/reaction/2191609

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthyl isothiocyanatoformateHCID 85320—
Reactant2-Chloro-3-hydrazinylpyrazine hydrochlorideHCID 53402742—
SolventChloroformHCID 6212—
ProductEthyl 2-(3-chloropyrazin-2-yl)hydrazinecarbonothioylcarbamateHCID 13447669120.9%

Reaction Steps

A solution of 2-chloro-3-hydrazinylpyrazine hydrochloride (3.32 g, 18.34 mmol) in anhydrous chloroform was treated with O-ethyl carbonisothiocyanatidate (1.9 mL, 16.11 mmol) at room temperature. Anhydrous methanol (10 mL) was added to the reaction mixture which was then concentrated under reduced pressure to yield ethyl 2-(3-chloropyrazin-2-yl)hydrazinecarbonothioylcarbamate (5.37 g) as an orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329705B2
Source datasetuspto-grants-2012_12
ORD IDord-c6302ec31c514e56878bab038da5a833
Source noteuspto-grants-2012_12