Sodium Hydroxide → (1-Methyl-2-phenoxy-ethoxy)-naphthalene-2-carboxylic acid

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Reaction Steps

To 0.47 g of 1-(1-methyl-2-phenoxy-ethoxy)-naphthalene-2-carboxylic acid methyl ester in 5 ml of THF and 2 ml methanol were added 10 ml of 2 M aqueous sodium hydroxide. After 16 h at room temperature and 2 h at reflux the organic solvents were removed in vacuo. The residue was treated with 2 M hydrochloric acid, and three times extracted with ethyl acetate. The combined organic layers were washed with brine, dried over magnesium sulphate, concentrated and dried in vacuo to yield 0.36 g of 1-(1-methyl-2-phenoxy-ethoxy)-naphthalene-2-carboxylic acid.

Provenance & Evidence