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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1166712Generated: November 2, 2026

Hydrazine → 3-Chloro-4-hydroxybenzohydrazide

https://huagongshe.com/reaction/1166712

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantMethyl 3-chloro-4-hydroxybenzoateHCID 77580—
SolventEthanolHCID 702—
Product3-Chloro-4-hydroxybenzohydrazideHCID 1095426860%

Reaction Steps

To a sample of methyl 3-chloro-4-hydroxybenzoate (2 g) dissolved in ethanol (50 mL) was added hydrazine (1.8 mL). The reaction was refluxed overnight under nitrogen. Upon cooling the reaction vessel, the desired product crystallized out of solution. The white solid was isolated by filtration. Recrystallization from hot ethanol gave the 3-chloro-4-hydroxybenzoic acid hydrazide in 60% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06613942B1
Source datasetuspto-grants-2003_09
ORD IDord-f4ea030593b347ce86eed9e07d505227
Source noteuspto-grants-2003_09