Dimethylformamide → HCID 13402054, compound

Participants

Reaction Steps

To a mixture of 6 g. (0.028 M) of 4-hydroxy-7-methylpyrido[3',2':4,5]thieno[3,2-d]-1,2,3-triazine, 12 g. of K2CO3 in 150 ml. DMF at 75° C. was added 6 ml. methyl iodide and stirring at this temperature was continued for 3 hours. The mixture was then diluted with water and the precipitated product was collected by filtration. Crystallization with chloroform gave m.p. 169°-171° C.

Provenance & Evidence