Sodium Carbonate → HCID 303820, compound

Participants

Reaction Steps

To 4-bromopyridine hydrochloride (Aldrich) (8.9 g, 46 mmol) and tetrakis(triphenylphosphine)palladium(0) (Aldrich) (1.6 g, 1.4 mmol) was added 1,2-dimethoxyethane (250 mL) with stirring under nitrogen. After 20 min, a solution of Na2CO3 (9.7 g in 70 mL of water) and 4-tert-butylbenzeneboronic acid (9.8 g, 55 mmol) were added sequentially to the mixture. The reaction was stirred at reflux overnight. The reaction mixture was concentrated in vacuo to approximately ⅓ its original volume, and the mixture was extracted with EtOAc (2×100 mL). The combined EtOAc layers were washed with brine, dried over Na2SO4 and concentrated in vacuo. Purification by silica gel chromatography (1:5 EtOAc/hexanes) gave the title compound as a white solid. MS (ESI, pos. ion) m/z: 212 (M+1).

Provenance & Evidence