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. 2024 Apr 30;20:973–1000. doi: 10.3762/bjoc.20.87

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Copyright © 2024, De Salvo et al.

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Scheme 20 — Synthesis of indoles from substituted 2-nitrostyrenes (top) and ω-nitrostyrenes (bottom) via reductive cyclization with phenyl formate as the carbon monoxide source.