反应详情

To a dry flask containing a magnetic stir bar and a nitrogen atmosphere was added 0.247 g (1.33 mmol) of 3-[(methylsulfonyl)methyl]aniline, 2 mL dry acetonitrile and 0.23 mL (1.3 mmol) of diisopropylethyl amine and resultant mixture cooled in an ice bath. To the cold solution was added a solution of 0.2 g (1.33 mmol) of 2,4-dichloro-1,3,5-triazine in 2.4 mL of dry acetonitrile over 1 min. The reaction mixture was stirred for ca. 16 hrs and 1 gram of silica gel was added. The mixture was concentrated in vacuo to dryness and applied to the top of column of silica gel and eluted with a 15-50% ethyl acetate/dichloromethane gradient. The proper fractions were combined and concentrated in vacuo to give 0.28 g (70%) of 4-chloro-N-{3-[(methylsulfonyl)methyl]phenyl}-1,3,5-triazin-2-amine as a white solid. HNMR: δ 10.83 (s, 1H), 8.64 (s, 1H), 7.63 (m, 2H), 7.4 (t, 1H), 7.25 (d, 1H), 4.48 (s, 2H), 2.94 (s, 3H); MS (ES+, m/z) 299, 301 (M+H).

1. additionTo a dry flask containing a magnetic stir bar
2. temperaturecooled in an ice bath
3. addition1 gram of silica gel was added
4. concentrationThe mixture was concentrated in vacuo to dryness
5. washeluted with a 15-50% ethyl acetate/dichloromethane gradient
6. concentrationconcentrated in vacuo