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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2202626Generated: November 2, 2026

Hydrazine hydrate (1:1) → HCID 86698963, compound

https://huagongshe.com/reaction/2202626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 86698962HCID 86698962—
SolventEthanolHCID 702—
ProductHCID 86698963HCID 86698963—

Reaction Steps

2-((cyclopropylamino)(methylthio)methylene)malononitrile in EtOH (100 mL) and added hydrazine hydrate (1 eq), 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-(cyclopropylamino)-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-45a2b354833f42e3bc630aafe345bcf3
Source noteuspto-grants-2016_06