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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1759878Generated: October 25, 2026

Potassium Carbonate → 4-(2,3,5,6-Tetrafluorophenoxy)-6-(2-butynyloxy)pyrimidine

https://huagongshe.com/reaction/1759878

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantAmmonium ChlorideHCID 25517—
Reactant2,3,5,6-TetrafluorophenolHCID 69858—
Reactant4-(2-Butynyloxy)-6-chloropyrimidineHCID 12137602—
SolventDimethylformamideHCID 6228—
Product4-(2,3,5,6-Tetrafluorophenoxy)-6-(2-butynyloxy)pyrimidineHCID 2259989729.2%

Reaction Conditions

Temperature60 °C

Reaction Steps

To 2 ml of N,N-dimethylformamide were added 0.2 g of 4-chloro-6-(2-butynyloxy)pyrimidine, 0.23 g of potassium carbonate, and 0.22 g of 2,3,5,6-tetrafluorophenol, followed by stirring at 60° C. for 7 hours. The reaction mixture was then left for cooling to room temperature and poured into a saturated aqueous ammonium chloride solution, which was extracted three times with chloroform. The chloroform layers were combined and washed with diluted hydrochloric acid and then with water. The organic layer was dried over anhydrous magnesium sulfate and then concentrated. The residue was subjected to silica gel column chromatography to give 0.10 g of 4-(2,3,5,6-tetrafluorophenoxy)-6-(2-butynyloxy)pyrimidine (the present compound (90)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06838463B2
Source datasetuspto-grants-2005_01
ORD IDord-04dcbf1315c342d4929878d072f21454
Source noteuspto-grants-2005_01