Potassium Carbonate → 2-Chloro-3-methyl-6-(pyrimidin-4-YL)pyrimidin-4-one

Participants

Reaction Conditions

Reaction Steps

Phosphorous oxychloride (4.60 g, 30 mmol) was added to dimethylformamide (32 ml) and stirred 20 min at 0° C. 2-Mercapto-3-methyl-6-pyrimidin-4-yl-pyrimidin-4-one (4.40 g, 20 mmol) was added to the solution and stirred 5 min and then stirred at 70° C. for 1 hour. The reaction mixture was poured into ice water, neutralized by solid K2CO3, and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na2SO4 and evaporated in vacuo. Purification of the residue by silica gel column chromatography (ethyl acetate) gave the title compound (1.20 g, 27%).

Provenance & Evidence