反应详情

6-Aminotetralone (1.98 g, 12.3 mmol), hydroxylamine hydrochloride (0.85 g, 12.3 mmol), sodium acetate (2.52 g, 30.7 mmol), and water (3.3 ml) were dissolved in ethanol (10 ml), and the mixture was heated to reflux 4 hours. After cooling to room temperature, the mixture was diluted with water (20 ml), and the resulting precipitate was filtered to obtain 6-Amino-3,4-dihydro-2H-naphthalen-1-one oxime as a light brown solid, 1.80 g. (83% yield) 1H NMR (400 MHz, DMSO-d6) δ 10.41 (s, 1H), 7.48-7.53 (m, 1H), 6.36-6.40 (m, 1H), 6.27 (s, 1H), 5.20 (s, 2H), 2.44-2.53 (m, 4H), 1.60-1.69 (m, 2H); MS (m/e) 177 (M+1).

1. temperaturethe mixture was heated
2. temperatureto reflux 4 hours
3. filtrationthe resulting precipitate was filtered