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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1440472Generated: October 31, 2026

Diethyl bromomalonate → HCID 135817522, compound

https://huagongshe.com/reaction/1440472

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl bromomalonateHCID 69637—
ReactantEthyl 2-aminopyridine-3-carboxylateHCID 12433260—
SolventAcetoneHCID 180—
ProductHCID 135817522HCID 13581752234.8%

Reaction Steps

A mixture of diethyl bromomalonate (26 ml) and ethyl 2-aminonicotinate (13.3 g) was allowed to react at 80°-90° C. for 6 hours under nitrogen atmosphere. After completion of the reaction, the mixture was cooled to room temperature, and acetone (100 ml) was added thereto. The precipitated crystals were collected by filtration, affording 3,8-diethoxycarbonyl-2-hydroxy-imidazo[1,2-a]pyridine hydrobromide (9.98 g, yield 34.8%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05498774
Source datasetuspto-grants-1996_03
ORD IDord-55c29ec40ffc4d5ea714f2f705b292ed
Source noteuspto-grants-1996_03