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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1284087Generated: October 29, 2026

Ethanol → HCID 12399250, compound

https://huagongshe.com/reaction/1284087

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant2-AminopyridineHCID 10439—
ReactantHCID 12399236HCID 12399236—
SolventDiethyl EtherHCID 3283—
ProductHCID 12399250HCID 1239925039.4%

Reaction Steps

A mixture of 96 g of ethyl 4-(chloroacetyl)phenylacetate, 200 ml of ethanol and 64 g of 2-aminopyridine is heated under reflux for 2 hours. The ethanol is distilled off under reduced pressure, and water is added to the residue. The mixture is extracted with benzene, and the extract is washed with water, dried and concentrated to give a brown oil. To the oil is added ether, and the crystalline precipitate is filtered off and recrystallized from a mixture of benzene and petroleum ether to give 44 g of ethyl 4-(imidazo[1,2-a]pyridin-2-yl)phenylacetate as pale brown crystals melting at 92°-93°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03978071
Source datasetuspto-grants-1976_08
ORD IDord-3b1ab6daee694e8c9cfe81bfd4f2d7db
Source noteuspto-grants-1976_08