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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497811Generated: October 30, 2026

5-Bromo-3-nitro-1-phenylpyridin-2(1H)-one → 3-Nitro-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

https://huagongshe.com/reaction/497811

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-3-nitro-1-phenylpyridin-2(1H)-oneHCID 22319156—
SolventO-XyleneHCID 7237—
Product3-Nitro-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-oneHCID 22318956101.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

1.27 g of 5-bromo-3-nitro-1-phenyl-1,2-dihydropyridin-2-one, 2.38 g of 2-tri-n-butyl stannyl pyridine and 248 mg of tetrakistriphenylphosphine palladium were added to 20 ml of xylene, followed by stirring at 120° C. overnight in nitrogen atmosphere. The reaction mixture was purified by silica gel chromatography (ethyl acetate/hexane system), to give 638 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949571B2
Source datasetuspto-grants-2005_09
ORD IDord-119e6666e62a450ea42bcd90303f1ac8
Source noteuspto-grants-2005_09