反应详情

2-[2-(2,4-Difluorophenyl)chroman-6-yloxy]-5-nitropyridine was prepared as described for 5-nitro-2-(2-phenylchroman-6-yloxy)pyridine in Example 1(b) starting from 720 mg of 2-(2,4-difluorophenyl)chroman-6ol. 1H NMR (400 MHz, d6-DMSO) δ: 9.04 (d, 1H, J 3.0 Hz), 8.60 (dd, 1H, J 9.0, 3.0 Hz), 7.61 (m, 1H), 7.31 (m, 1H), 7.21 (d, 1H, 9.0 Hz), 7.17 (m, 1H), 7.02 (d, 1H, J 2.9 Hz), 6.97 (dd, 1H, J 8.9, 2.9 Hz), 6.91 (d, 1H, 8.9 Hz), 5.34 (dd, 1H, J 9.9, 2.0 Hz), 3.03 (m, 1H), 2.78 (m, 1H), 2.17 (m, 1H), 2.07 (m, 1H).