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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 82619Generated: October 30, 2026

1,1'-Carbonyldiimidazole → 3-[4-(benzyloxy)phenyl]-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

https://huagongshe.com/reaction/82619

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantN2-[4-(benzyloxy)phenyl]-5-methylpyridine-2,3-diamineHCID 58577457—
SolventTetrahydrofuranHCID 8028—
Product3-[4-(benzyloxy)phenyl]-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneHCID 5857757393.6%

Reaction Steps

A solution of N2-[4-(benzyloxy)phenyl]-5-methylpyridine-2,3-diamine (0.63 g) and CDI (0.67 g) in THF (20 mL) was refluxed overnight. The mixture was concentrated in vacuo. The residual solid was washed with AcOEt to give 3-[4-(benzyloxy)phenyl]-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (0.64 g) as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846713B2
Source datasetuspto-grants-2014_09
ORD IDord-9cf964908ba44a8c8914133d226444ee
Source noteuspto-grants-2014_09