Ethyl Acetate → [2-amino-5-(1H-indol-4-yl)-phenyl]-pyridin-3-yl-methanone

Participants

Reaction Conditions

Reaction Steps

To (2-amino-5-bromo-phenyl)-pyridin-3-yl-methanone (0.120 g, 0.43 mmol) and 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1-triisopropylsilanyl-1H-indole (0.210 g, 0.52 mmol) in 1 mL of dioxane and 0.5 mL of DMF was added chloro(di-2-norbornylphosphino)(2′-dimethylamino-1,1′-biphenyl-2-yl)palladium (II) and 2M aqueous K3PO4 (0.5 mL, 1 mmol). The resulting reaction mixture was heated at 120° C. for 1 h. Ethyl acetate was then added to the reaction mixture and the organic phase was washed with water and brine, dried, filtered and concentrated. The crude product was purified by preparative TLC to afford [2-amino-5-(1H-indol-4-yl)-phenyl]-pyridin-3-yl-methanone. 1H NMR (400 MHz, CD3OD): δ 8.82 (s, 1H), 8.63 (d, J=4.9 Hz, 1H), 8.03 (d, J=7.8 Hz, 1H), 7.70 (d, J=8.4 Hz, 1H), 7.63 (d, J=2.1 Hz, 1H), 7.47 (dd, J=7.8, 5.0 Hz, 1H), 7.30 (d, J=8.0 Hz, 1H), 7.21 (d, J=3.2 Hz, 1H), 7.10 (t, J=7.7 Hz, 1H), 6.97-6.93 (m, 2H), 6.48 (d, J=3.3 Hz, 1H).

Provenance & Evidence