Efficient Synthesis of Tetrasubstituted Furans from Nitroallylic Acetates and 1,3‐Dicarbonyl/α‐Activating Ketones by Feist–Bénary Addition–Elimination

Pure organic: The synthesis of tetrasubstituted furans often involves transition-metal catalysis or metal–halogen exchange reactions. A new approach to these heterocycles employs the Feist–Bénary addition–elimination process using nitroallylic acetates and 1,3-dicarbonyls (see scheme; X=C, O).