反应详情

7-(4-Methoxy-2-nitrophenoxy)-3-phenylchroman was prepared as described for 6-(4-methoxy-2-nitrophenoxy)-2-phenylchroman in Example 3(a) using 0.5 g of 3-phenylchroman-7-ol. 1H NMR (400 MHz, d6-DMSO) δ: 7.60 (d, 1H, J 3.1 Hz), 7.35 (m, 4H), 7.32 (dd, 1H, J 9.1, 3.1 Hz), 7.27-7.29 (m, 1H), 7.21 (d, 1H, J 9.1 Hz), 7.12 (d, 1H, J 8.3 Hz), 6.48 (dd, 1H, J 8.3, 2.5 Hz), 6.38 (d, 1H, J 2.5 Hz), 4.26 (dd, 1H, J 10.4, 3.5 Hz), 4.08 (t, 1H, J 10.4 Hz), 3.85 (s, 3H), 3.20 (m, 1H), 2.90-3.04 (m, 2H).