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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 600626Generated: October 30, 2026

6-Aminonicotinic acid → HCID 67273587, compound

https://huagongshe.com/reaction/600626

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Aminonicotinic acidHCID 18496—
Reactant3-Bromo-1-phenylpropane-1,2-dioneHCID 12568911—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67273587HCID 6727358794%

Reaction Conditions

Temperature20 °C

Reaction Steps

To a suspension of 0.33 g of 6-aminonicotinic acid in 5 mL of THF and 3 mL of ethanol is added a solution of 0.654 g of 3-bromo-1-phenylpropane-1,2-dione in 2 mL of THF. The reaction mixture is stirred at 45° C. for 16 hours and for 24 hours at 20° C., and then evaporated to dryness. The residue is taken up in dichloromethane and the solid is filtered off and washed with dichloromethane to give 0.78 g of 2-benzoylimidazo[1,2-a]pyridine-6-carboxylic acid hydrobromide in the form of a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902219B2
Source datasetuspto-grants-2011_03
ORD IDord-a705250289134b1d9e714d4881574492
Source noteuspto-grants-2011_03