反应详情

This compound was prepared from 404d (1.92 g, 9.2 mmol) in a manner similar to that for 405b yielding an amber oil (1.48 g, 90%): TLC Rf 0.28 (20% EtOAc/hexanes). 1NMR (600 MHz, CDCl3) δ 6.67 (s, 1H), 6.62 (m, 2H), 3.89-3.87 (t, 2H, J=6.54 Hz), 2.16 (s, 3H), 1.73-1.70 (quin, 2H, J=6.6 Hz), 1.49-1.45 (sex, 2H, J=7.5 Hz), 0.97-0.95 (t, 3H, J=7.38 Hz). 13C NMR (150 MHz, CDCl3) δ 152.4, 137.8, 124.2, 117.24, 116.13, 112.9, 68.3, 31.5, 19.3, 17.7, 13.9. Elemental analysis calculated for C11H17NO: C, 73.70; H, 9.56; N, 7.81. Found: C, 73.55; H, 9.51; N, 7.96.