70150-84-4 → HCID 178527770, compound

Participants

Reaction Steps

As in Example 39, 3-furoic acid hydrazide is reacted with 5-chloro-2-cyanophenyl isothiocyanate to produce 2-(3-furyl)-5-mercapto-[1,2,4]triazolo[1,5-c]quinazoline, mp>300°, which is converted to the 5-methylthio compound and thence to 9-chloro-2-(3-furyl)-5-imino-5,6-dihydro[1,2,4]triazolo[1,5-c]quinazoline, purified as the methanesulphonate salt, mp 290°-292°.

Provenance & Evidence