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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 633604Generated: October 29, 2026

Cesium carbonate → HCID 90418667, compound

https://huagongshe.com/reaction/633604

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2,4-DifluorophenolHCID 123051—
Reactant3-Bromo-2-chloro-5-nitropyridineHCID 230889—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 90418667HCID 9041866794.2%

Reaction Steps

A mixture of 3-bromo-2-chloro-5-nitropyridine (0.237 g, 1 mmol), 2,4-difluorophenol (0.13 g, 1 mmol) and cesium carbonate (0.326 g, 1 mmol) in dimethyl sulfoxide (2 mL) was reacted in a Biotage microwave reactor at 80° C. for 30 minutes. The reaction mixture was partitioned between ethyl acetate and water, washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered and concentrated. The residue was purified by flash chromatography (silica gel, 0-20% ethyl acetate in heptanes) to provide 0.312 g (94%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321764B2
Source datasetuspto-grants-2016_04
ORD IDord-8584009cc15447ea8c6af0333a6916df
Source noteuspto-grants-2016_04