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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1044243Generated: October 30, 2026

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

https://huagongshe.com/reaction/1044243

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantIodoethaneHCID 6340—
ReactantCesium carbonateHCID 10796—
Reactant3-[4-(benzyloxy)phenyl]-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneHCID 58577573—
SolventDimethylformamideHCID 6228—
Product3-[4-(benzyloxy)phenyl]-1-ethyl-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneHCID 58577277—

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 3-[4-(benzyloxy)phenyl]-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (0.64 g), iodoethane (0.20 mL) and cesium carbonate (1.26 g) in DMF (5 mL) was stirred at 50° C. for 4 h. After stirring at room temperature over weekend, the mixture was poured into water, and the mixture was extracted with AcOEt. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated in vacuo to give 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (0.68 g) as a brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08563575B2
Source datasetuspto-grants-2013_10
ORD IDord-e20ae7035178423491fce6bded0a0774
Source noteuspto-grants-2013_10