Copper‐Catalyzed Annulation Toward Fluoroalkylated Quinoxalines Using o ‐Phenylenediamines and α ‐Fluoroacetyl Diazoester

A novel copper‐catalyzed cyclization provides efficient access to fluorinated quinoxalines from o ‐phenylenediamines and diazodicarbonyl compounds. Proceeding under mild conditions with broad substrate scope, this protocol delivers diverse derivatives in moderate to good yields, offering a streamlined approach to scaffolds valuable for medicinal and materials science applications.