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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884855Generated: October 31, 2026

Potassium Carbonate → HCID 52919792, compound

https://huagongshe.com/reaction/884855

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-(3-Fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazoleHCID 66880180—
SolventMethanolHCID 887—
ProductHCID 52919792HCID 5291979271.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 0.28 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.27 g of potassium carbonate and 3 ml of methanol was stirred while heating at 60° C. for two hours. The reaction mixture was concentrated under reduced pressure. Water was added thereto, which followed by extraction with ethyl acetate twice. The combined organic layers were washed with water and a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.21 g of 2-(3-methoxypyridin-4-yl)-5-(trifluoromethyl)benzoxazole (hereinafter, referred to as “active compound 37”).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08242133B2
Source datasetuspto-grants-2012_08
ORD IDord-27b1e9b113d546b8909c10e42cafc0fb
Source noteuspto-grants-2012_08