Pyridine → HCID 131715624, compound

Participants

Reaction Steps

A mixture of 7-amino-4,4a,-dihydro-4a-methyl-[5H]-indeno[1,2-c]pyridazin-3[2H]-one (0.78 g), dimethyl cyanodithioiminocarbonate (1.02 g) in dry pyridine (20 ml) were stirred under reflux for 3 hours. The reaction mixture was evaporated to dryness, azeotroped several times with water and the residue triturated with acetone to give 7-(N-cyano-S-methylisothioureido)-4,4a,-dihydro-4a-methyl-[5H]-indeno[1,2-c]pyridazin-3[2H]-one (0.28 g) as a solid, m.p. 240° (d).

Provenance & Evidence