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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 916982Generated: October 25, 2026

Cesium carbonate → 6-(2-Chlorophenyl)-5-(4-chlorophenyl)-2-(3,4-difluorophenoxy)nicotinonitrile

https://huagongshe.com/reaction/916982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant3,4-DifluorophenolHCID 75927—
Reactant2-Chloro-6-(2-chlorophenyl)-5-(4-chlorophenyl)nicotinonitrileHCID 10237101—
SolventTolueneHCID 1140—
Product6-(2-Chlorophenyl)-5-(4-chlorophenyl)-2-(3,4-difluorophenoxy)nicotinonitrileHCID 44440992—

Reaction Conditions

Temperature100 °C

Reaction Steps

To the product of Example 131 (250 mg, 0.6984 mmol) was added 3,4-difluorophenol (273 mg, 2.095 mmol), Cs2CO3 (683 mg, 2.096 mmol) and toluene (4.5 mL) before heating to 100° C. After stirring 16 hours the reaction solution was filtered and concentrated. The residue was purified by flash chromatography (silica gel) eluting with 10% ethyl acetate/hexane affording the product. MS (electrospray) m/e 453.0 MH+ (Rt=4.4 min LC/MS).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07271266B2
Source datasetuspto-grants-2007_09
ORD IDord-ad9cd9cad4b74bfdb98b72fd0bc7f9af
Source noteuspto-grants-2007_09