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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 653048Generated: October 30, 2026

Phenyl Isothiocyanate → ST50557383

https://huagongshe.com/reaction/653048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl IsothiocyanateHCID 7673—
ReactantAcetohydrazideHCID 14039—
SolventEthanolHCID 702—
ProductST50557383HCID 4191462—

Reaction Steps

By reacting 27 g of phenyl isothiocyanate and 15 g of acetylhydrazine in ethanol at room temperature, 1-acetyl-4-phenylthiosemicarbazide was formed, which was collected by filtration and refluxed in ethanol in the presence of sodium ethylate to provide 3-mercapto-5-methyl-4-phenyl-1,2,4-triazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04675276
Source datasetuspto-grants-1987_06
ORD IDord-30c969d8d7e6426aa013cef8fef11497
Source noteuspto-grants-1987_06