反应详情

温度

60 °C

(6-Acetoxymethyl-benzofuran-3-yl)-acetic acid ethyl ester (0.80 g, 2.90 mmol) was added to liquid ammonia at −78° C., the reaction flask was sealed and heated at 60° C. for 6 days. The reaction mixture was cooled, the excess of ammonia was allowed to evaporate and the residue was washed with in hexane and precipitated to give the 2-(6-hydroxymethyl-benzofuran-3-yl)-acetamide as an off white solid (0.54 g, 90%). 1H NMR (DMSO-d6, 400 MHz) 3.46 (s, 2H), 4.60 (d, J=5.6 Hz, 1H), 5.25 (t, J=5.6 Hz, 1H), 6.98 (brs, 1H), 7.20 (d, J=8.0 Hz, 1H), 7.47 (s, 1H), 7.53 (brs, 1H), 7.56 (d, J=8.0 Hz, 1H), 7.77 (s, 1H), 13C NMR (DMSO-d6, 400 MHz) 30.8, 63.4, 109.4, 115.4, 120.0, 121.6, 127.0, 139.9, 143.4, 155.2, 171.7.

1. customthe reaction flask was sealed
2. temperatureThe reaction mixture was cooled
3. customto evaporate
4. washthe residue was washed with in hexane
5. customprecipitated