反应详情

2-(4-Aminophenyl)acetic acid (4.56 mmol), 5-bromo-2-chloropyrimidine 4 (3.26 mmol), and p-TSA (0.842 mmol) are heated at reflux in 1,4-dioxane (10 mL) and DMSO (2 mL) for 16 h. The mixture is poured onto water and extracted with EtOAc. Concentration of the organic phase gives 2-(4-(5-Bromopyrimidin-2-ylamino)phenyl)acetic acid 22 as a yellow solid. 1H NMR (400 MHz, d6-DMSO) δ 9.84 (s, 1H), 8.58 (s, 2H), 7.61 (d, J=8.4 Hz, 2H), 7.17 (d, J=8.4 Hz, 2H), 3.50 (s, 2H). MS (m/z) (M+1)+: 308.0, 310.0.

1. additionThe mixture is poured onto water
2. extractionextracted with EtOAc