反应详情

温度

100 °C

1H-benzimidazol-2-yl(4-((3-chloro-2-pyrazinyl)oxy)phenyl)methanone (0.50 g, 1.4 mmol), tert-butyldimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-cyclohexen-1-yl)oxy)silane (0.68 g, 2.0 mmol), potassium acetate (1.0 g, 11.0 mmol), and bis[di-tert-butyl(phenyl)phosphane]dichloropalladium (0.066 g, 0.11 mmol) were taken up in 24 mL of 3:1 MeCN:water. The mixture was purged with nitrogen and heated to 100° C. After 18 hours, the mixture was diluted with 30 mL of water and extracted three times with 25 mL of 9:1 chloroform:isopropanol. The combined organic extracts were dried over MgSO4. Filtration and concentration under reduced pressure, followed by flash chromatography on silica gel (5% to 25% EtOAc/hexanes) afforded 1H-benzimidazol-2-yl(4-((3-(4-((tert-butyl(dimethyl)silyl)oxy)-1-cyclohexen-1-yl)-2-pyrazinyl)oxy)phenyl)methanone.

1. customThe mixture was purged with nitrogen
2. additionthe mixture was diluted with 30 mL of water
3. extractionextracted three times with 25 mL of 9:1 chloroform
4. dry with materialThe combined organic extracts were dried over MgSO4
5. filtrationFiltration and concentration under reduced pressure