An approach to the synthesis of 4-unsubstituted 2-(2-oxo-1,2-dihydro-3-pyrrol-3-ylidene)malononitriles

Key Points

• The aim is to synthesize pyrrol-2-one derivatives containing a yidenemalononitrile fragment.
• Developed a method for synthesizing pyrrol-2-one derivatives.
• Used furan-2-ones to react with ammonia.
• Formed γ-oxobutanamide intermediates prior to final reaction.
• Reacted intermediates with tetracyanoethylene to create target compounds.
• Successfully synthesized target pyrrole derivatives.
• Identified specific pathways involving intermediates and final reactions.