Ammonium Hydroxide → HCID 764895, compound

Participants

Reaction Steps

To a stirred solution of 310 mg (1.27 mmol) 2,6-diamino-4-furan-2-yl-4H-thiopyran-3,5-dicarbonitrile in 20 ml ethanol was added 7.5 ml 25% ammonium hydroxide solution and the mixture was heated at reflux for 2 hours. The reaction mixture was then concentrated in vacuo and the residue triturated in ether to afford 170 mg (55%) 6-amino-4-furan-2-yl-2-thioxo-1,2-dihydro-pyridine-3,5-dicarbonitrile as a dark red crystalline solid. EI-MS m/e (%): 242 (M+, 100).

Provenance & Evidence