反应详情

2-[3-(3-Fluorophenyl)chroman-7-yloxy]-5-nitropyridine was prepared as described for 5-nitro-2-(2-phenylchroman-6-yloxy)pyridine in Example 1(b) using 125 mg of 3-(3-fluorophenyl)-chroman-7-ol. The product was recrystallised from ethanol. 1H NMR (400 MHz, CDCl3) δ: 9.07 (d, 1H, J 2.8 Hz), 8.47 (dd, 1H, J 9.0, 2.8 Hz), 7.33 (m, 1H), 7.16 (d, 1H, J 8.9 Hz), 6.95-7.06 (m, 4H), 6.69-6.71 (m, 2H), 4.38 (dd, 1H, J 10.6, 4.3 Hz), 4.06 (t, 1H, 10.6 Hz), 3.30 (m, 1H), 3.06 (m, 2H).

1. customThe product was recrystallised from ethanol