反应详情

Using Method DD with 2,6-dichloropyrazine (200 mg, 1.34 mmol) and 3-acetamidophenol (202 mg, 1.49 mmol), and crystallisation in AcOEt, the title compound was obtained (350 mg). Yield: 99%. 1H NMR (250 MHz, DMSO-d6) δ 2.06 (s, 3H, CH3—NH), 6.90-6.95 (m, 1H, Harom 5), 7.76 (dd, 2H, Harom 4+6, Jm=2.0 Hz, Jo=7.6 Hz), 7.59 (s, 1H, Harom 2), 8.52 (s, 1H, HPz 5), 8.54 (s, 1H, HPz 3), 10.12 (s, 1H, NH).