反应详情

温度

80 °C

A vial equipped with magnetic spin vane was charged with [[3-(3-Bromophenyl)-1H-1,2,4-triazol-1-yl]methyl 2,2-dimethylpropanoate (0.203 g; 0.60 mmol; Ex IV-24), 4-formylphenyl boronic acid (0.099 g; 0.66 mmol), and PdCl2(dppf).CH2Cl2 (0.012 g; 0.015 mmol), was sealed with a septum and evacuated/backfilled with N2 (×3). PhMe/EtOH (4:1, 3 mL) and 2M Na2CO3 (0.72 mL; 1.44 mmol) were added through the septum via syringe and the mixture was stirred at 80° C. for 2.5 h. Upon cooling, the mixture was partitioned between EtOAc/water and the layers were separated. The aqueous layer was extracted with EtOAc (×2), combined organics were washed (water, brine), dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash chromatography (EtOAc/hexanes), affording the title compound as a colorless gum/film. LC/MS (method A) 2.60 min; m/z 364 (M+H).

1. customA vial equipped with magnetic spin vane
2. temperatureUpon cooling
3. customthe mixture was partitioned between EtOAc/water
4. customthe layers were separated
5. extractionThe aqueous layer was extracted with EtOAc (×2)
6. washcombined organics were washed (water, brine)
7. dry with materialdried over Na2SO4
8. concentrationconcentrated in vacuo
9. customThe residue was purified by flash chromatography (EtOAc/hexanes)