Methyl iodide → Ethyl 2-(3,4-dichlorobenzyl)-3,5-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate

Participants

Reaction Steps

A mixture of 100 mg of ethyl 2-(3,4-dichlorobenzyl)-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate, 40 mg of potassium carbonate, 10 mL of acetonitrile and 40 mg of methyl iodide was heated under reflux for 1.5 hours. After condensing the reaction mixture under reduced pressure, the residue was purified on silica gel column chromatography (ethyl acetate:hexane=1:1) to provide 60 mg (58%) of the title compound.

Provenance & Evidence