Methyl iodide → 5-ethyl-6-methylthio-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one

Participants

Reaction Steps

To a solution of 5-ethyl-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one potassium (5.0 g) in DMF (40 ml) was added methyl iodide (3.65 g) and the mixture was stirred for 1 hour. This reaction mixture was concentrated and the residue was diluted with water. The resulting crystals were collected by filtration and rinsed with water to provide 5-ethyl-6-methylthio-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one as colorless solid (2.908 g).

Provenance & Evidence