反应详情

温度

140 °C

A mixture of 2-benzyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Frontier Scientific Inc., 90 mg, 0.411 mmol), 4-(5-chloro-2-(6-methoxypyridin-3-ylamino)pyridin-3-yl)-N,N-bis(4-methoxybenzyl)-6-methyl-1,3,5-triazin-2-amine (160 mg, 0.274 mmol), Pd2dba3 (12.54 mg, 0.014 mmol), 2-(dicyclohexylphosphino)-2′,4′,6′,-tri-1-propyl-1,1′-biphenyl (X-Phos, 13.06 mg, 0.027 mmol) (Strem Co.) was purged with argon and then treated with dioxane (2.50 mL), water (0.25 mL) and sodium carbonate (72.6 mg, 0.685 mmol) and heated under a microwave irradiation at 140° C. for 30 min. The mixture was filtered through a short plug of Celite® (diatomaceous earth), washed with EtOAc (×3), and concentrated. The crude product was adsorbed onto a plug of silica gel and chromatographed through a Redi-Sep pre-packed silica gel column (pure hexanes to 30% EtOAc in hexanes) to give 4-(5-benzyl-2-(6-methoxypyridin-3-ylamino)pyridin-3-yl)-N,N-bis(4-methoxybenzyl)-6-methyl-1,3,5-triazin-2-amine (110 mg, 62.8%) as a yellow syrup. m/z (ESI, +ve ion) 640.0 (M+H)+.

1. customwas purged with argon
2. filtrationThe mixture was filtered through a short plug of Celite® (diatomaceous earth)
3. washwashed with EtOAc (×3)
4. concentrationconcentrated
5. customchromatographed through a Redi-Sep pre-packed silica gel column (pure hexanes to 30% EtOAc in hexanes)