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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1414839Generated: October 29, 2026

Salicylic Acid → HCID 22613512, compound

https://huagongshe.com/reaction/1414839

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSalicylic AcidHCID 338—
ReactantPyridineHCID 1049—
ReactantBenzoylhydrazineHCID 11955—
ReactantThionyl ChlorideHCID 24386—
SolventChlorobenzeneHCID 7964—
ProductHCID 22613512HCID 2261351267%

Reaction Steps

13.6 g (0.1 mol) of benzhydrazide and 13.8 g (0.1 mol) of salicylic acid are initially introduced into 200 ml of chlorobenzene and the mixture is heated to the boil. After adding 3.0 g (0.038 mol) of pyridine, 13.1 g (0.11 mol) of thionyl chloride are added dropwise over the course of 1 hour. The reaction starts immediately whilst the product separates out as a white precipitate. After cooling, the mixture is filtered and the product is washed with methanol and dried. N-Salicyloyl-N'-phenyl-hydrazine of melting point 259° C is thus obtained in 67% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04002680
Source datasetuspto-grants-1977_01
ORD IDord-728115499bfc4490906a9de7792bcc91
Source noteuspto-grants-1977_01