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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 234881Generated: October 31, 2026

Ethyl cyanoacetate → HCID 178432555, compound

https://huagongshe.com/reaction/234881

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl cyanoacetateHCID 7764—
ReactantPiperidineHCID 8082—
ReactantHCID 178481271HCID 178481271—
SolventEthanolHCID 702—
ProductHCID 178432555HCID 17843255550%

Reaction Steps

A suspension of 3 g (22 mmol) of 4-amino-5-formyl-3-methylpyrimidine, 5 g (44 mmol) of ethylcyanoacetate and 850 mg (100 mmol) of piperidine in 20 ml of ethanol was stirred for 20 hours at 20°-25° C. The fine-particled solid formed was separated off, freed from solvent residues under reduced pressure and suspended twice in 20 ml of ethanol each time. The crude product was finally washed with diethyl ether. Yield: 50% (fine powder); mp.: >200° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05597776
Source datasetuspto-grants-1997_01
ORD IDord-6047b6c878ec454088f310a612255948
Source noteuspto-grants-1997_01