Water → HCID 56943928, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (9-phenyl-9H-carbazol-3-yl)boronic acid (1.41 g, 4.92 mmol), 6,6′-dibromo-3,3′-bipyridine (0.750 g, 2.39 mmol), tetrakis(triphenylphosphine)palladium(0) (0.166 g, 0.143 mmol), Na2CO3 (1.59 g, 15.0 mmol), H2O (15 mL) and THF (25 mL) was degassed with argon for about 25 min while stirring. The reaction mixture was then maintained at about 85° C. under argon. Upon confirming consumption of the starting material by thin layer chromatography (TLC) (SiO2, dichloromethane), the reaction was cooled to RT and poured over CH2Cl2 (ca. 350 mL). The organics were then washed with saturated NaHCO3, H2O and brine, dried over MgSO4, filtered and concentrated in vacuo. Purification of the crude via flash chromatography (SiO2, 100% CH2Cl2 to 29:1 CH2Cl2-acetone) afforded Compound 22 (0.98 g, 64%) as an off-white solid. MS (ES+) m/z: 639 (C46H30N4 requires 639).

Provenance & Evidence