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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2094342Generated: October 30, 2026

4-Fluoro-3-(trifluoromethyl)benzonitrile → HCID 67364762, compound

https://huagongshe.com/reaction/2094342

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Fluoro-3-(trifluoromethyl)benzonitrileHCID 144255—
Reactant3-Pyrazolidinone hydrochlorideHCID 2733712—
ReactantPotassium tertbutoxideHCID 50987170—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 67364762HCID 67364762—

Reaction Steps

1.00 g (5.29 mmol) 4-fluoro-3-trifluoromethyl-benzonitrile are stirred together with 1.35 g (12.0 mmol) potassium-tert.-butoxide in 4 ml DMSO at ambient temperature under an argon atmosphere for 35 min and then 1.00 g (8.16 mmol) pyrazolidin-3-on-hydrochloride in 3 ml DMSO are added. After stirring at ambient temperature for 68 h the reaction mixture is poured into semisat. sodium chloride solution and extracted with ethyl acetate. The combined organic phases are dried over magnesium sulphate and evaporated down completely i. vac.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445525B2
Source datasetuspto-grants-2013_05
ORD IDord-e1bdee02d1ab49faab54330c4d7120d3
Source noteuspto-grants-2013_05