Methyl iodide → HCID 20355373, compound

Participants

Reaction Steps

To 3 g. of 7-methyl-3-mercapto-7H-pyrazolo[4,3-e][1,2,4]-triazolo[4,3-c]pyrimidine, potassium salt, in 25 ml. of dimethylformamide, 2.1 g. of methyl iodide are added and the mixture is stirred for 1 hour at room temperature. The reaction mixture is then poured into 200 ml. of water and the product, 7-methyl-3-methylthio-7H-pyrazolo[4,3-e][1,2,4]triazolo [4,3-c]-pyrimidine, is filtered under suction, crystallized from dimethylformamide and obtained as yellowish crystals, m.p. 204°-206°.

Provenance & Evidence