Silver Nanoparticle-Catalyzed Synthesis of Substituted γ-Butenolides

Key Points

• To develop an efficient method for synthesizing γ-substituted butenolides using silver nanoparticles as catalysts.
• Used silver nanoparticles (AgNPs) as catalysts for the synthesis of butenolides.
• Employed alkynes as key precursors in the reaction.
• Evaluated catalytic efficiency over multiple cycles and assessed recovery of the catalyst.
• Achieved yields of up to 74% for both conjugated and deconjugated γ-substituted butenolides.
• Demonstrated the ability to recover and reuse silver nanoparticles in multiple catalytic cycles.