2-Bromopyridine → [1(2H),2'-Bipyridin]-2-one

Participants

Reaction Conditions

Reaction Steps

25 ml of a dimethylformamide solution containing 4.00 g of 2(1H)-pyridone and 8.00 g of 2-bromopyridine was incorporated with 3.80 g of potassium carbonate and 0.51 g of cupurous iodide, followed by stirring at 120° C. for 2 hours. After the mixture was returned to room temperature, water was added thereto. The mixture was extracted with ethyl acetate, and the ethyl acetate layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=1:1), to give 1.58 g of the title compound as a pale yellow wax.

Provenance & Evidence