4-Chloro-7-methyl-1,2,3-triazino[4',5'-4,5]thiopheno[2,3-b]pyridine → HCID 178422890, compound

Participants

Reaction Steps

A mixture of 7 g. (0.03 M) of 4-chloro-7-methylpyrido[3',2':4,5]thieno[3,2-d]-1,2,3-triazine, and 7 g. (0.09 M) of thiourea in 350 ml. ethanol was refluxed for 2 hours. It was then cooled and filtered. The crude product was dissolved in 5% NaOH, and treated with charcoal and filtered. Acidification with HOAC followed by filtration yielded yellow solid, m.p. 205°-208° C.

Provenance & Evidence