Potassium Carbonate → Carbamic acid 3-[4-(1-phenyl-ethoxy)-phenyl]-isoxazol-5-ylmethyl ester

関与物質

反応手順

Carbamic acid 3-(4-hydroxy-phenyl)-isoxazol-5-ylmethyl ester (150 mg, 0.64 mmol) and potassium carbonate (180 mg, 1.28 mmol) were dissolved in 10 ml of acetonitrile, to which was added dropwise (1-bromoethyl)benzene (131 μl, 0.96 mmol), and reacted at room temperature overnight. The completion of the reaction was confirmed by liquid chromatography, and then acetonitrile was distilled under reduced pressure. A crude solid compound was extracted with ethyl acetate and the solvent was distilled under reduced pressure to obtain a white solid compound. This was recrystallized from methylene chloride:MeOH (9:1) to obtain carbamic acid 3-[4-(1-phenyl-ethoxy)-phenyl]-isoxazol-5-ylmethyl ester as a white solid compound.

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