Arylsulfone-driven Divergence in Base-mediated 3+3 Benzannulation Reactions of Aurones: Facile synthesis of Substituted Dibenzofurans

Key Points

• The research aims to explore the divergent reactions of aurones using DBU to produce substituted dibenzofurans.
• Utilized DBU as a base to mediate reactions
• Investigated the reaction with various 1,3-bisnucleophiles
• Analyzed the reaction pathways, particularly the elimination pathway for arylsulfone-containing nucleophiles
• Successfully synthesized substituted dibenzofurans through the reaction of aurones and nucleophiles.
• Observed that arylsulfone-containing nucleophiles follow an elimination pathway.
• Demonstrated the versatility of DBU in facilitating diverse reaction pathways.