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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2410129Generated: October 31, 2026

Potassium Carbonate → 3-chloro-1-(4-methoxy-benzyl)-5-nitro-1H-pyridin-2-one

https://huagongshe.com/reaction/2410129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-Methoxybenzyl bromideHCID 165021—
ReactantHCID 178526838HCID 178526838—
SolventDimethylformamideHCID 6228—
Product3-chloro-1-(4-methoxy-benzyl)-5-nitro-1H-pyridin-2-oneHCID 86703125—

Reaction Steps

4-methoxybenzyl bromide (5.0 mL, 34.4 mmol) was added to a cold (0° C.) mixture 3-chloro-2-hydroxy-5-nitropyridine (5 g, 28.6 mmol) and K2CO3 (7.9 g, 57.3 mmol) in DMF (25 mL). The reaction mixture was allowed to warm to rt, stirred for 2 h, quenched by addition of a saturated aqueous NaHCO3 solution, and extracted with EtOAc. The organic layer was washed with brine, dried (Na2SO4), filtered, and concentrated. The residue was purified by trituration in EtOAc. tR: 0.98 min (LC-MS 2); ESI-MS: 295.2 [M+H]+ (LC-MS 2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815926B2
Source datasetuspto-grants-2014_08
ORD IDord-773b68ea8aee492098f913e596442f85
Source noteuspto-grants-2014_08