反应详情

温度

90 °C

Water (1.0 mL) was added to a solution of (+/−)-4-(4-bromophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (0.35 g, 0.806 mmol), which may be prepared as in Preparation 2, Step 4, in 1,4-dioxane (5.0 mL). (4-nitrophenyl)boronic acid (209 mg, 1.01 mmol), cesium fluoride (0.49 mg, 3.22 mmol) and tetrakis(triphenylphosphine)palladium (0.094 g, 0.810 mmol) were added and the solution was heated to 90° C. After 4 hours the reaction was concentrated in vacuo and the resulting residue was triturated with ethyl acetate. The suspension was filtered through celite. The filtrate was washed with brine, dried (Na2SO4), and concentrated in vacuo. Purification on Biotage flash 40S (hexanes/ethyl 6:4-1:1) afforded the title compound as a yellow solid (700 mg, 50%). LCMS m/z 475.2 (M−1).

1. concentrationAfter 4 hours the reaction was concentrated in vacuo
2. customthe resulting residue was triturated with ethyl acetate
3. filtrationThe suspension was filtered through celite
4. washThe filtrate was washed with brine
5. dry with materialdried (Na2SO4)
6. concentrationconcentrated in vacuo
7. customPurification on Biotage flash 40S (hexanes/ethyl 6:4-1:1)