反应详情

This compound was prepared, starting from compound 15 (55 mg, 0.24 mmol), according to the procedure developed for compound 10. Reaction time under reflux: 6 h, to give compound 16 (84 mg, 0.16 mmol) as an orange-coloured oil. Yield 97%; Rf (Al2O3, CH2Cl2/EtOH, 98/2, v/v) 0.70; IR (CCl4) ν 1521, 1619, 1685, 2760-3000, 3405 cm−1; 1H NMR (400 MHz, CDCl3) δ 1.09 (t, 3H, J=7.1 Hz), 2.72 (q, 2H, J=7.1 Hz), 2.82 (m, 2H), 3.35 (q, 2H, J=5.7 Hz), 3.63 (q, 2H, J=5.9 Hz), 5.40 (se, 1H), 6.01 (dd, 1H, J=2.3, 8.0 Hz), 6.11 (dd, 1H, J=2.3, 8.0 Hz), 7.30 (q, 1H, 4JH-F=8.0 Hz, J=8.0 Hz), 7.90 (d, 1H, J=8.8 Hz), 8.06 (dd, 1H, J=1.8, 8.8 Hz), 8.34 (se, 1H), 8.58 (d, 1H, J=1.8 Hz), 9.61 (s, 1H); ESI-MS m/z 508.9 [M+H]+.

1. customThis compound was prepared
2. customReaction time
3. temperatureunder reflux