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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1035682Generated: October 29, 2026

Hydrazine → 2-Chloro-3-hydrazinopyrazine

https://huagongshe.com/reaction/1035682

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant2,3-DichloropyrazineHCID 78575—
SolventPyridineHCID 1049—
Product2-Chloro-3-hydrazinopyrazineHCID 32143088%

Reaction Conditions

Temperature60 °C

Reaction Steps

2,3-Dichloropyrazine (25 g) and anhydrous hydrazine (21 ml) were dissolved in pyridine (100 mL) and heated to 60° C. After 3 h, the reaction was concentrated in vacuo to yield a residue. The residue was rinsed with water and the filtered. The resulting solid was collected by filtration and dried at 40° C. in vacuo to afford Compound 1A as a light yellow solid (20.3 g, 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546394B2
Source datasetuspto-grants-2013_10
ORD IDord-f6f287973dbf4288aae12090b0ac4a4f
Source noteuspto-grants-2013_10