反应详情

A mixture of 2-(4-aminophenyl)ethanol (0.72 mol), 5-bromo-2-chloropyrimidine 4 (0.72 mol), sodium iodide (0.72 mol), and diisopropylethylamine (1.45 mol) in n-butanol (400 mL) is heated at reflux for 16 h. The reaction is cooled to rt and the mixture is diluted with water. The light yellow solid that precipitates is filtered to give 2-(4-(5-bromopyrimidin-2-ylamino)phenyl)ethanol 18. 1H NMR (300 MHz, d6-DMSO) δ 9.72 (s, 1H), 8.52 (s, 2H), 7.55 (m, 2H), 7.09 (d, 2H), 4.64 (m, 1H), 3.52 (m, 2H), 2.65 (m, 2H). MS (m/z) (M+1)+: 294.1, 296.1.

1. temperatureis heated
2. temperatureat reflux for 16 h
3. customThe light yellow solid that precipitates
4. filtrationis filtered