Synthesis of Functionally Substituted 4H-Thiopranes Based on the Reaction of Carbon Disulphide with Malononitrile Trimer

Key Points

• The aim is to synthesize and transform novel thiopranes using carbon disulfide and malononitrile as starting materials.
• Synthesis of potassium 2-(1-cyano-2,2-disulfidovinyl)-1,1,3,3-tetracyanopropenide
• Reactions involving further transformations of the synthesized disulfide
• Production of 2-amino-4-(dicyanonethylene)-4H-thiopyran-3,5-dicarbonitrile derivatives
• Successfully synthesized potassium 2-(1-cyano-2,2-disulfidovinyl)-1,1,3,3-tetracyanopropenide
• Obtained various derivatives including 2-amino-4-(dicyanonethylene)-4H-thiopyran-3,5-dicarbonitrile