反应详情

温度

90 °C

To a solution of N-(4-(difluoromethoxy)phenyl)-5-vinylpyrimidin-2-amine (0.102 g, 0.387 mmol) in ACN (3 mL) were added 1-(benzyloxy)-4-iodobenzene (0.1 g, 0.322 mmol), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (0.033 g, 0.032 mmol), tri-o-tolylphosphine (0.039 g, 0.129 mmol), and TEA (0.135 mL, 0.967 mmol). The reaction mixture was flushed with N2 and heated at 90° C. overnight. Solvent was evaporated, and the residue was dissolved in ethyl acetate, filtered through celite and concentrated. The crude product was purified by flash chromatography on silica gel using 30% ethyl acetate in hexanes to give (E)-5-(4-(benzyloxy)styryl)-N-(4-(difluoromethoxy)phenyl)pyrimidin-2-amine (0.1 g, 70%). 1H NMR (400 MHz, DMSO-d6) δ ppm 5.14 (s, 2H), 6.93-7.30 (m, 7H), 7.34-7.52 (m, 2H), 7.78-7.80 (m, 2H), 8.71 (s, 2H), 9.82 (s, 1H). LCMS: RT 1.18 min, (M+H)+446.6.

1. customThe reaction mixture was flushed with N2
2. customSolvent was evaporated
3. dissolutionthe residue was dissolved in ethyl acetate
4. filtrationfiltered through celite
5. concentrationconcentrated
6. customThe crude product was purified by flash chromatography on silica gel using 30% ethyl acetate in hexanes