反应详情

2-Acetylphenol (1 g, 7.34 mmol) is treated with 1.79 g (9.18 mmol) of ethyl 4-bromobutyrate, 3.55 g (25.71 mmol) of potassium carbonate and a catalytic amount (11 mg, 0.07 mmol) of sodium iodide as described in Preparation 3 to give 1.84 g of (2-acetylphenoxy)-butyric acid, ethyl ester as a light yellow oil which solidified upon standing: m.p. 43°-45° C.; The 1H NMR (300 MHz, CDCl3) is consistent with the desired product; IR (neat) 1730, 1660, 1600 cm-1 ; MS (CI) m/e 251 (M+H), 232, 205.