1,4-Dioxane → 3-(3-Formyl-pyridin-4-yl)-benzonitrile

Participants

Reaction Steps

A flask was charged with 4-bromo-pyridine-3-carbaldehyde (186 mg, 1 mmol), 3-cyanophenelboronic acid (176 mg, 1.2 mmol), tetrakis(triphenylphosphine)palladium(0) (58 mg, 0.05 mmol), potassium phosphate (319 mg, 1.5 mmol) and 1,4-dioxane (10 mL). The reaction mixture was kept at 50° C. overnight. The reaction mixture was then diluted with ethyl acetate and washed with water, then brine. The organic layer was dried over sodium sulfate, concentrated, and the residue purified by flash chromatography to yield 3-(3-formyl-pyridin-4-yl)-benzonitrile as white crystals.

Provenance & Evidence