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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1899975Generated: October 27, 2026

Potassium Carbonate → 8-(2,6-Dichloro-3-nitrobenzyloxy)-2-methylimidazo[1,2-a]pyridine

https://huagongshe.com/reaction/1899975

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-Methylimidazo[1,2-a]pyridin-8-olHCID 820953—
Reactant2,6-Dichloro-3-nitrobenzyl BromideHCID 11011535—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product8-(2,6-Dichloro-3-nitrobenzyloxy)-2-methylimidazo[1,2-a]pyridineHCID 1080789124.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 8-hydroxy-2-methylimidazo[1,2-a]pyridine (207 mg), 2,6-dichloro-3-nitrobenzyl bromide (400 mg) and potassium carbonate (580 mg) in N,N-dimethylformamide (8 ml) was stirred for 2 hours at 60° C. The mixture was cooled and diluted with water. The separated oil was extracted with dichloromethane. The organic layer was washed with water, dried, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel to give 8-(2,6-dichloro-3-nitrobenzyloxy)-2-methylimidazo[1,2-a]pyridine (120 mg) as crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05574042
Source datasetuspto-grants-1996_11
ORD IDord-b0c3501d80fa48bb925c88508267a90e
Source noteuspto-grants-1996_11