反应详情

A solution of methyl 2-hydroxy-4-quinolinecarboxylate (406 mg, 2 mmol) in THF (20 mL) at 0° C. was treated with a solution of phenyl lithium (1.8-M in THF, 2.3 mL, 4.2 mmol), stirred at room temperature for 2 h, poured into water (100 mL), the resulting precipitate filtered and dried to give the title compound (636 mg, 97%) as a cream solid: mp>350° C.; IR νmax (Nujol)/cm−1 3550-3300,3085, 3059, 2924, 2854, 1652, 1461, 1377, 759, 750 and 698; NMR δH (400 MHz, ?) 5.66 (1H, s), 6.88 (1H, t, J 7.6 Hz), 7.28-7.39 (11H, m), 7.47 (1H, t, J 7.5 Hz), 7.66 (1H, d, J 8.6 Hz), 7.81 (1H, d, J 7.6 Hz) and 11.63-11.88 (1H, s); M/Z 328 (M+H)+.

1. filtrationthe resulting precipitate filtered
2. customdried