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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2202628Generated: November 1, 2026

Hydrazine hydrate (1:1) → HCID 86698964, compound

https://huagongshe.com/reaction/2202628

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 7718564HCID 7718564—
SolventEthanolHCID 702—
ProductHCID 86698964HCID 86698964—

Reaction Steps

Dissolved 2-((methylthio)((4-nitrophenyl)amino)methylene)malononitrile in EtOH (100 mL) and added hydrazine hydrate (1 eq., 3.64 mL), then heated to reflux until complete by TLC (absence of starting material, 18 hrs). Poured into ice water and filtered to obtain 5-amino-3-((4-nitrophenyl)amino)-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-3f6b7d91944041b9a5fc5b82de4cedc6
Source noteuspto-grants-2016_06