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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2095149Generated: October 30, 2026

Carbonyl cyanide phenylhydrazone → 1-methyl-4-phenylazo-1H-pyrazole-3,5-diamine

https://huagongshe.com/reaction/2095149

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbonyl cyanide phenylhydrazoneHCID 67541—
ReactantMethylhydrazine sulfateHCID 165286—
Product1-methyl-4-phenylazo-1H-pyrazole-3,5-diamineHCID 1494753—

Reaction Steps

1-methyl-4-phenylazo-1H-pyrazole-3,5-diamine was prepared using 2-phenylhydrazonomalononitrile (425 mg) and methylhydrazine sulfate (720 mg). The compound was purified by column chromatography and afforded a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445694B2
Source datasetuspto-grants-2013_05
ORD IDord-39e3e0f5bcda49e88cb9e1e807488d4b
Source noteuspto-grants-2013_05