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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1166711Generated: November 2, 2026

Ethanol → HCID 67483598, compound

https://huagongshe.com/reaction/1166711

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydrazineHCID 9321—
ReactantEthyl 5-hydroxy-1H-indole-2-carboxylateHCID 90677—
ProductHCID 67483598HCID 6748359885%

Reaction Steps

To a sample of ethyl 5-hydroxyindole-2-carboxylate (5 g, 24 mmol), dissolved in ethanol (250 mL) was added hydrazine (4 mL, 121 mmol). The reaction was refluxed overnight under nitrogen. Upon cooling the reaction vessel, the desired product crystallized. The white solid was isolated by filtration. Recrystallization from hot ethanol gave the 5-hydroxyindole-3-carboxylic acid hydrazide in 85% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06613942B1
Source datasetuspto-grants-2003_09
ORD IDord-471d6f2d684b40ecad26a488b1e6f365
Source noteuspto-grants-2003_09