Water → HCID 117974095, compound

Participants

Reaction Steps

0.31 g of sodium hydride (60%) was added to 20 ml of a solution of 2.76 g of 2-(3-bromothiophen-2-yl)-5-(trifluoromethylthio)benzoxazole and 0.6 ml of ethanethiol in NMP at 0° C., and the mixture was stirred at room temperature for 1 hour. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with a 10% aqueous hydrochloric acid solution and a saturated aqueous salt solution and dried over anhydrous sodium sulfate, then concentrated under reduced pressure. The resulting residue was applied to a silica gel column chromatography to obtain 2.65 g of 2-(3-ethylthiothiophen-2-yl)-5-(trifluoromethylthio)benzoxazole (Compound of Present Invention (30)).

Provenance & Evidence