反应详情

3-dimethylamino-1-thien-3-ylpropen-1-one was prepared from 3-acetylthiophene (15.0 g) and dimethylformamide dimethylacetal (47.5 mL, 357 mmol) as a yellow solid (14 g), m.p. 98°. δH (CDCl3) 7.90 (1H, dd, J 3.0, 1.0 Hz), 7.76 (1H, d, J 12.4 Hz), 7.53 (1H, dd, J 5.9,1.0 Hz), 7.28-7.25 (1H, m), 5.57 (1H,d, J 12.4 Hz) and 3.03 (6H, bs).