反应详情

1-(Cyclopropylmethyl)-4-(trifluoromethyl)-1H-benzotriazol-5-yl trifluoromethanesulfonate (221 mg, 0.568 mmol) and (6-chloro-2-fluoropyridin-3-yl)boronic acid (130 mg, 0.738 mmol, 1.3 equiv) were dissolved in degassed dioxane (5.6 mL) and treated with potassium phosphate (0.37 mL, 2 M aqueous, 0.74 mmol, 1.3 equiv) and palladium tetrakis(triphenylphosphine) (98 mg, 0.085 mmol, 0.15 equiv). The mixture was placed into a preheated oil bath at 90° C. for 3 hours, cooled to ambient temperature, diluted with ethyl acetate (40 mL) and washed with sodium bicarbonate (2×30 mL, aqueous saturated). The combined organic extracts were dried with sodium sulfate, filtered and concentrated in vacuo. The residue was purified by silica gel gradient chromatography (100:0 to 70:30; hexanes:ethyl acetate), providing the titled compound.

1. washwashed with sodium bicarbonate (2×30 mL, aqueous saturated)
2. dry with materialThe combined organic extracts were dried with sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe residue was purified by silica gel gradient chromatography (100:0 to 70:30; hexanes:ethyl acetate)