1-Butanol → HCID 66880202, compound

Participants

Reaction Conditions

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 butanol was stirred while heating at 100° C. for six hours. To the mixture, 0.14 g of potassium carbonate was added, and the reaction mixture was stirred while heating at 100° C. for further four hours. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with 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 0.24 g of 2-(3-butoxypyridin-4-yl)-5-(trifluoromethyl)benzoxazole (hereinafter, referred to as “active compound 72”).

Provenance & Evidence