反应详情

温度

140 °C

A mixture of 4,6-dichloro-2-pyrimidinamine (1.64 g, 0.01 mol), p-toluidine (1.07 g, 0.01 mol) in dioxane (2 mL) was heated in a sealed tube for 30 minutes at 140° C. The, crude product was treated with NaOH (50 ml, 2M) and extracted with CH2Cl2 (3×50 mL). The organic layer was washed with brine (2×100 mL), dried over Na2SO4, filtered, and concentrated in vacuo. The crude product was purified by chromatography on silica using hexane/EtOAc (1:3), giving the desired product (2 g, 78%).

1. extractionextracted with CH2Cl2 (3×50 mL)
2. washThe organic layer was washed with brine (2×100 mL)
3. dry with materialdried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customThe crude product was purified by chromatography on silica