反应详情

Under argon, 5% palladium on carbon (850 mg) was added to N-(4-methyl-3-nitrophenyl)-2-morpholinopyridine-4-carboxamide (8.5 g) in methanol (300 ml). Hydrogen gas was introduced to the reaction via a balloon and stirred at ambient temperature for 18 hours. Methanol (200 ml) was added and the reaction mixture was filtered through celite. The filtrate was evaporated, then stirred in ethyl acetate, filtered again and washed with a small amount of methanol to yield N-(3-amino-4-methylphenyl)-2-morpholinopyridine-4-carboxamide (5.12 g); NMR: 2.01 (s, 3H), 3.52 (m, 4H), 3.73 (m, 4H), 4.83 (s, 2H), 6.78 (d, 1H), 6.84 (d, 1H) 7.04-7.08 (m, 2H), 7.20 (s, 1H), 8.24 (d, 1H), 9.95 (s, 1H); m/s: M+H+ 313.

1. filtrationthe reaction mixture was filtered through celite
2. customThe filtrate was evaporated
3. stirringstirred in ethyl acetate
4. filtrationfiltered again
5. washwashed with a small amount of methanol