Potassium Carbonate → 4-{5-Chloro-2-[(trimethylsilyl)ethynyl]phenyl}-2-methoxypyridine

Participants

Reaction Steps

A solution of 333 mg (1.16 mmol) of [(2-bromo-4-chlorophenyl)ethynyl](trimethyl)silane, 195 mg (1.28 mmol, 1.1 eq.) of (2-methoxypyridin-4-yl)boronic acid, 401 mg (2.9 mmol, 2.5 eq.) of potassium carbonate and 14 mg (0.02 mmol, 0.015 eq.) of [1,1-bis(diphenylphosphino)ferrocene]palladium(II) chloride/monodichloromethane adduct in 18 ml of dioxane was irradiated in a microwave at 130° C. for 15 min. The reaction mixture was then filtered through Celite and the residue was washed with dioxane. The combined filtrates were concentrated under reduced pressure. After addition of water/ethyl acetate and phase separation, the organic phase was concentrated under reduced pressure. Yield: 550 mg (purity 41%, 62% of theory)

Provenance & Evidence