Triphenylphosphine → HCID 86081346, compound

Participants

Reaction Steps

Add methyl 2,6-dichloro-isonicotinate (3.8 g, 18.4 mmol), tetrakis(triphenylphosphine)palladium (0) (1.15 g, 0.99 mmol), triphenylphosphine (524 mg, 2 mmol) in toluene (40 mL) to a previously nitrogen-filled sealed vessel. Flush the reactants with nitrogen again. Add tributyl(vinyl)tin (6.98 mL, 24.0 mmol) and heat the sealed mixture at 95° C. overnight. Cool to room temperature, dilute with diethyl ether and filter through a filtering agent. Wash the organic filtrate with saturated ammonium chloride, saturated sodium bicarbonate and saturated aqueous sodium chloride. Dry (magnesium sulfate), concentrate and purify (silica gel chromatography, eluting with 5:95 to 10:90 ethyl acetate:hexanes) to give the title compound (70%).

Provenance & Evidence