Hydrochloric Acid → 1-(4-Trifluoromethyl-benzyloxy)-naphthalene-2-carboxylic acid

関与物質

反応手順

To 1.59 g of 1-(4-trifluoromethyl-benzyloxy)-naphthalene-2-carboxylic acid methyl ester were added 10 ml of 2 M aqueous sodium hydroxide and 10 ml of methanol. After 3 h at reflux the mixture was poured unto water, treated with 2 M hydrochloric acid, and three times extracted with ethyl acetate. The combined organic layers were dried over magnesium sulphate and concentrated in vacuo. The resulting residue was purified by crystallization from pentane to yield 1.22 g of 1-(4-trifluoromethyl-benzyloxy)-naphthalene-2-carboxylic acid.

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