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Article Abstract
Herein, we developed a novel radical cascade phosphorylation/cyclization strategy to access phosphorus-containing diazocine-fused carbazoles in moderate to good yields, offering expanded opportunities for the exploration of biologically active molecules. This method features metal-free photochemical tandem, mild conditions, broad substrate scopes, and scale-up ability. Mechanistic experiments implied that this photocatalyzed phosphorylation/cyclization reaction was realized by a sequence of EnT/SET/SET/radical addition/cyclization/SET/deprotonation processes.
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