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5,11‐Diazadibenzo[hi,qr]tetracene was synthesized as a new nitrogen‐substituted polycyclic heteroaromatic compound by Pd‐catalyzed cycloisomerization of an alkyne precursor followed by oxidative cyclization with bis(trifluoroacetoxy)iodobenzene. The substitution of imine‐type nitrogen atoms significantly enhanced its electron‐accepting character and facilitated the direct nucleophilic addition of...
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