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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923096Generated: October 30, 2026

Cesium carbonate → HCID 53416774, compound

https://huagongshe.com/reaction/923096

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-PyrrolidoneHCID 12025—
Reactant2-Chloro-4-fluorobenzonitrileHCID 109000—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 53416774HCID 53416774—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 500 mg of 2-chloro-4-florobenzonitrile, 821 mg of 2-pyrrolidinone and 3 g of cesium carbonate in 5 mL of DMF was heated to 100° C. in a sealed microwave reactor for 15 min. The reaction mixture was diluted with ethyl acetate, washed with H2O, dried (MgSO4) and evaporated. Purified by silica gel chromatography (20-80% ethyl acetate/hexane) to afford 2-chloro-4-(2-oxopyrrolidin-1-yl)benzonitrile. 890 mg of 2-chloro-4-(2-oxopyrrolidin-1-yl)benzonitrile was reacted via Procedure T to give 2-chloro-4-(2-oxopyrrolidin-1-yl)benzoic acid. 80 mg of 4-chloro-3-(pyridin-2-yl)aniline was coupled to 2-chloro-4-(2-oxopyrrolidin-1-yl)benzoic acid via Procedure G. The product was purified on reverse phase HPLC to yield 2-chloro-N-(4-chloro-3-(pyridin-2-yl)phenyl)-4-(2-oxopyrrolidin-1-yl)benzamide. MS (Q1) 426.2 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278961B2
Source datasetuspto-grants-2016_03
ORD IDord-d427beec8c6f47e78558ba8622f95257
Source noteuspto-grants-2016_03