反应详情

(E)-4-Bromo-N-propylbut-2-enamide (Elliott, M.; Farnham, A. W.; Janes, N. F.; Johnson, D. M.; Pulman, D. A. Pesticide Science 1987 18(4) 229) (0.14 g, 0.70 mmol), 2-hydroxy-6-nitrobenzonitrile (0.14 g, 0.88 mmol), potassium carbonate (0.39 g, 2.81 mmol), and 18-crown-6 (0.11 g, 0.42 mmol) were refluxed in acetone (6 mL) for 2 h, and then poured into ice water (45 mL). The resultant precipitate was collected by filtration to give 0.16 g (79%) of the title compound as an off white solid. 1H NMR (400 MHz, DMSO-d6) δ 0.84 (t, J=7.2 Hz, 3H), 1.42 (hex, J=7.2 Hz, 2H), 3.06 (q, J=6.8 Hz, 2H), 5.07 (d, J=2.8 Hz, 2H), 6.16 (d, J=16.0 Hz, 1H), 6.71-6.78 (m, 1H), 7.69 (d, J=8.0 Hz, 1H), 7.88-7.96 (m, 2H), 8.11-8.14 (m, 1H).

1. filtrationThe resultant precipitate was collected by filtration