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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 622922Generated: October 31, 2026

Picolinic acid → HCID 14390488, compound

https://huagongshe.com/reaction/622922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPicolinic acidHCID 1018—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantImidazolateHCID 3386966—
ReactantHCID 14390487HCID 14390487—
SolventAcetonitrileHCID 6342—
SolventTetrahydrofuranHCID 8028—
ProductHCID 14390488HCID 1439048819.2%

Reaction Steps

While bubbling nitrogen through a solution of picolinic acid (1.23 g, 0.01 mole) in 100 ml of tetrahydrofuran, solid 1,1'-carbonyldiimidazole (1.62 g, 0.01 mole) was added in portions. The reaction mixture was allowed to stir at room temperature for 5 hours. Then, a solution of 2-[(3-amino-2-pyridinyl)amino]acetamide (1.66 g, 0.01 mole) in acetonitrile was added in portions to the imidazolide solution and the reaction mixture was allowed to stir at room temperature overnight. The solvents were evaporated. The residue completely solidified upon standing. The solid was washed with methylene chloride and the solid was filtered off. The solid was recrystallized from ethyl acetate to give several crops of crystals, which were combined and recrystallized from ethyl acetate to give 0.52 g of title compound, mp 188°-90° C. with decomposition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04772600
Source datasetuspto-grants-1988_09
ORD IDord-e4afdaf82e634d19be0e56baef3a93b2
Source noteuspto-grants-1988_09