Concise and Efficient Synthesis of 4-Fluoro-1H-pyrrolo[2,3-b]pyridine
Two routes describing the preparation of 4-fluoro-1H-pyrrolo[2,3-b]pyridine (4a) from 1H-pyrrolo[2,3-b]pyridine N-oxide (1) are presented. Regioselective fluorination was achieved using either the Balz−Schiemann reaction or lithium−halogen exchange.
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Veröffentlicht in: | Organic letters 2003-12, Vol.5 (26), p.5023-5025 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Two routes describing the preparation of 4-fluoro-1H-pyrrolo[2,3-b]pyridine (4a) from 1H-pyrrolo[2,3-b]pyridine N-oxide (1) are presented. Regioselective fluorination was achieved using either the Balz−Schiemann reaction or lithium−halogen exchange. |
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ISSN: | 1523-7060 1523-7052 |
DOI: | 10.1021/ol036030z |