反应详情

6-tert-Butyl-4-(3-chloropropyl)-4H-benzo[1,4]oxazin-3-one (81MF2248b) (1.39 g, 4.93 mmol), K2CO3 (1.36 g, 9.85 mmol), NaI (1,48 g, 9.85 mmol) and 4-butylpiperidine (0.73 g, 5.17 mmol) were mixed according to GP11. CC (SiO2; Heptane/EtOAc 10:1-4) gave the title compound (81MF2248F) (1.66 g, 87%). 1H NMR (CDCl3) d 7.01-6.98 (m, 2H), 6.91-6.88 (m, 1H), 4.55 (s, 2H), 3.99 (t, J=7.2 Hz, 2H), 2.89 (d, J=6.4 Hz, 2H), 2.42 (t, J=6.8 Hz, 2H), 1.92-1.82 (m, 4H), 1.65 (d, J=9.6 Hz 2H), 1.31 (s, 9H), 1.29-1.17 (m, 9H), 0.88 (t, J=6.8 Hz, 3H); 13C NMR (CDCl3) d 164.6, 146.1, 143.3, 128.1, 120.6, 116.6, 112.2, 67.9, 56.5, 54.4, 39.8, 36.4, 35.9, 34.7, 32.6, 31.6, 29.2, 24.8, 23.1, 14.2.