反应详情

A mixture of 4-methylthiopyrido[4,3-d]pyrimidine (171 mg, 0.96 mmol), (see previous experimental) and 3-bromoaniline (1 mL) is heated to i00C for 2 h. A solid precipitates on cooling and is collected by vacuum filtration and then recrystallized from EtOH to yield 4-(3-bromoanilino)pyrido[4,3-d]pyrimidine (30 mg, 10%). 1H NMR (DMSO) δ 10.33 (1H, s), 9.86 (1H, s), 8.84 (1H, d, J=5.8 Hz), 8.79 (1H, s), 8.22 (1H, s), 7.89 (1H, d, J=7.2 Hz), 7.69 (1H, d, J=5.8 Hz), 7.40 (2H, dt, Jd=8.0 Hz, Jt=1.5 Hz).

1. temperatureis heated to i00C for 2 h
2. customA solid precipitates
3. temperatureon cooling
4. filtrationis collected by vacuum filtration
5. customrecrystallized from EtOH