Concise and Efficient Synthesis of 4-Fluoro-1H-pyrrolo[2,3-b]pyridine
Organic Letters2003Vol. 5(26), pp. 5023–5025
Citations Over TimeTop 16% of 2003 papers
Abstract
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. [reaction: see text]
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