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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1977280Generated: October 30, 2026

Ethanol → HCID 21997466, compound

https://huagongshe.com/reaction/1977280

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTetrahydrofuranHCID 8028—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactantmethyl 6-piperidinonicotinateHCID 2794747—
SolventWaterHCID 962—
ProductHCID 21997466HCID 21997466—

Reaction Steps

To a solution of methyl 6-(1-piperidyl)nicotinate (5.00 g) in a mixed solvent of ethanol (25 ml) and tetrahydrofuran (10 ml) was added hydrazine monohydrate (11.0 ml). The solution was refluxed for 6 hours, during which period additional hydrazine monohydrate (11.0 ml) was added to the mixture. After cooling to ambient temperature, the reaction mixture was added to water (100 ml) and then stirred for 20 minutes at ambient temperature. The resulting precipitates were filtered, washed with water, and dried to give 6-(1-piperidyl)nicotinoylhydrazine (3.44 g), as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06232290B1
Source datasetuspto-grants-2001_05
ORD IDord-8829e9ea712b409a95b9c2ab8c8665d9
Source noteuspto-grants-2001_05