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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1655952Generated: October 30, 2026

Ethanol → HCID 13883242, compound

https://huagongshe.com/reaction/1655952

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantPiperidineHCID 8082—
Reactant3-Pyridinecarboxaldehyde, 2-amino-HCID 737633—
ReactantDiethyloxalacetate sodiumHCID 23179480—
ProductHCID 13883242HCID 13883242—

Reaction Steps

A suspension of 2-aminopyridine-3-carboxaldehyde (8.67 g) in absolute ethanol (500 mL) was treated with piperidine (1.7 mL) and sodium diethyloxalacetate (29.84 g) and heated to reflux for 18 h. The solvent was evaporated and the residue purified by chromatography on silica using 70% ethyl acetate-hexane as eluent to afford the title compound (2.6 g). M.p. 83°-85°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05252560
Source datasetuspto-grants-1993_10
ORD IDord-2cf11ea19e0d429384c1738730d51a55
Source noteuspto-grants-1993_10