4-Methoxybenzylamine → 4-Amino-2-oxo-1,2-dihydroquinoline-3-carbonitrile

関与物質

反応条件

反応手順

4-chloro-2-oxo-1,2-dihydroquinoline-3-carbonitrile (example 72) (0.66 g, 3.23 mmol) was suspended in DMF (7 mL), and 4-methoxybenzylamine (0.94 mL, 7.26 mmol) was added. The reaction was heated at 100° C. for 1 hour and the DMF was removed under vacuum. The residue was dissolved in TFA (6 mL) and stirred at room temperature for 30 minutes and dichloromethane (10 mL) was added. The solid product that formed was collected, suspended in water and the solution stirred overnight. The solid was collected by filtration to give 4-amino-2-oxo-1,2-dihydroquinoline-3-carbonitrile (0.150 g, 25%) as a white solid. M.p.: >250° C. 1H NMR (400 MHz, DMSO-d6) δ 7.19 (m, 2H), 7.57 (m, 1H), 7.88 (bs, 2H), 8.12 (d, J=7.6 Hz, 1H), 11.23 (s, 1H). MS 186 (MH+).

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