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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605995Generated: November 1, 2026

4-Pyridinecarboxaldehyde → HCID 21498308, compound

https://huagongshe.com/reaction/1605995

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-PyridinecarboxaldehydeHCID 13389—
ReactantEthyl 3-amino-3-(ethylsulfanyl)prop-2-enoateHCID 71365247—
SolventEthanolHCID 702—
ProductHCID 21498308HCID 21498308—

Reaction Steps

Upon boiling a solution of 5.3 g of pyridine-4-aldehyde and 17.5 g of 3-amino-3-ethylmercaptoacrylic acid ethyl ester in 100 ml of ethanol for 5 hours, 2-amino-4-(4-pyridyl)-6-ethylmercapto-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 156°C is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03951993
Source datasetuspto-grants-1976_04
ORD IDord-0114f225018446e990e027e0e5e04c7d
Source noteuspto-grants-1976_04