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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 362664Generated: October 25, 2026

Methylhydrazine → 3-Amino-1-methyl-5-methylsulfanyl-1H-pyrazole-4-carbonitrile

https://huagongshe.com/reaction/362664

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylhydrazineHCID 6061—
Reactant2-(Bis(methylsulfanyl)methylidene)propanedinitrileHCID 99229—
SolventWaterHCID 962—
Product3-Amino-1-methyl-5-methylsulfanyl-1H-pyrazole-4-carbonitrileHCID 2819539—

Reaction Steps

9.63 g (56.6 mmol) [Bis(methylmercapto)methylene]-malononitrile was suspended in 50 ml water and treated with 3.7 ml (67.9 mmol) methylhydrazine. The mixture was heated at boiling for 1 hour, the reaction solution cooled, the precipitate suction filtered and recrystallised from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05869686
Source datasetuspto-grants-1999_02
ORD IDord-507da0fb6fbf4503b91cb0978cda6a32
Source noteuspto-grants-1999_02