Potassium Carbonate → [4-(4-Ethanesulfonyl-phenoxy)-6-fluoro-naphthalen-2-yl]-acetic acid methyl ester

関与物質

反応条件

反応手順

A sealed tube containing (6-fluoro-4-hydroxy-naphthalen-2-yl)-acetic acid methyl ester (49 mg, 0.21 mmol), 1-ethanesulfonyl-4-fluoro-benzene (87 mg, 0.427 mmol), and potassium carbonate (73 mg, 0.53 mmol) was evacuated and filled with nitrogen. Anhydrous N,N-dimethylformamide (2 mL) was added. After being stirred at 100° C. overnight, the mixture was cooled to room temperature, then diluted with water (10 mL), and extracted with ethyl acetate (10 mL×2). The combined organic layers were washed with brine (10 mL×3), dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography (elution with 30% ethyl acetate in petroleum ether) to give [4-(4-ethanesulfonyl-phenoxy)-6-fluoro-naphthalen-2-yl]-acetic acid methyl ester (67.6 mg, 80%) as a white solid.

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