反应详情

温度

90 °C

7-Bromo-2-chlorothieno[3,2-d]pyrimidin-4-amine (500 mg, 1.90 mmol) was dissolved in dioxane (10 mL) and then 2.0 N sodium carbonate (2.85 mL, 5.70 mmol) and 3-nitrophenylboronic acid (320 mg, 1.90 mmol) were added. After flowing nitrogen to the mixture solution for 10 minutes, Pd2(PPh3)Cl2 (80 mg, 0.11 mmol) and t-Butyl Xphos (73 mg, 0.17 mmol) were added. The reaction mixture solution was stirred at 90° C. for 6 hours, filtered with celite, and washed with ethyl acetate. The aqueous layer was separated from the organic layer and extracted with ethyl acetate. The organic layer was combined, washed with brine, dried with MgSO4, and then concentrated by filtering. Purification by silica gel chromatography (1/4 to 1/3 ethyl acetate/hexane) yielded the target compound (420 mg, 72% yield).

1. customfor 10 minutes
2. filtrationfiltered with celite
3. washwashed with ethyl acetate
4. customThe aqueous layer was separated from the organic layer
5. extractionextracted with ethyl acetate
6. washwashed with brine
7. dry with materialdried with MgSO4
8. concentrationconcentrated
9. filtrationby filtering
10. customPurification by silica gel chromatography (1/4 to 1/3 ethyl acetate/hexane)