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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2202614Generated: November 2, 2026

Water → HCID 86698958, compound

https://huagongshe.com/reaction/2202614

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 1704483HCID 1704483—
SolventEthanolHCID 702—
ProductHCID 86698958HCID 86698958—

Reaction Conditions

Temperature70 °C

Reaction Steps

2-((methylthio)(pyridin-3-ylamino)methylene)malononitrile (0.4 g) was dissolved in EtOH (15 mL) and hydrazine hydrate (1.5 eq., 0.086 mL) was added. Reaction was stirred at 70° C. until complete by HPLC (absence of starting material, 18 hrs) and was brought to room temperature. 20 mL of H2O was then added and precipitate formed which was filtered to obtain 5-amino-3-(pyridin-3-ylamino)-1H-pyrazole-4-carbonitrile as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365556B2
Source datasetuspto-grants-2016_06
ORD IDord-019fed5d900e4ea9b9d63c74e07fb747
Source noteuspto-grants-2016_06