Potassium Phosphate, Tribasic → 8-(4-(3,4-Difluorophenyl)pyridin-2-yl)-2-methylbenzofuro[2,3-b]pyridine

Participants

Reaction Steps

A mixture of 2-methyl-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzofuro[2,3-b]pyridine (3.0 g, 9.70 mmol), 2-chloro-4-(3,4-difluorophenyl)pyridine (2.41 g, 10.67 mmol), Pd2(dba)3 (0.178 g 0.194 mmol), dicyclohexyl(2′,6′-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine (0.319 g, 0.776 mmol), potassium phosphate (7.21 g, 34.0 mmol), toluene (70 mL) and water (7 mL) was degassed with nitrogen and then refluxed overnight. The mixture was concentrated and extracted with ethyl acetate. The ethyl acetate layer was dried on Na2SO4 and then further purified by column chromatography using ethyl acetate in dichloromethane to give 8-(4-(3,4-difluorophenyl)pyridin-2-yl)-2-methylbenzofuro[2,3-b]pyridine (2.36 g, 6.34 mmol, 65.3% yield).

Provenance & Evidence