Potassium Nitrate → 1-Methoxy-4-nitronaphthalene-2-carboxylic acid

참여 물질

반응 단계

To a stirred solution of 1-methoxy-naphthalene-2-carboxylic acid (20.2 g; 0.1 m) in glacial acetic acid (200 ml) was added a solution of potassium nitrate (10.1 g; 0.1 m) in concentrated sulphuric acid (10 ml). The temperature was maintained below 25° C. by means of a water bath. The reaction was stirred for four hours and poured into ice-water (500 ml). The product was collected by filtration, washed well with water and dried in vacuo at room temperature to give 1-methoxy-4-nitro naphthalene-2-carboxylic acid, m.p. 204°-206° C.

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