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Synthesis 2004(16): 2614-2616
DOI: 10.1055/s-2004-831259
DOI: 10.1055/s-2004-831259
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York
A Concise Synthesis of 2,4-Disubstituted Pyridines: A Convenient Synthesis of 2-Bromo-4-iodopyridine via Halogen Dance and Its Successive One-Pot Disubstitutions
Further Information
Received
15 March 2004
Publication Date:
29 September 2004 (online)
Publication History
Publication Date:
29 September 2004 (online)
Abstract
As a key building block for 2,4-disubstituted pyridines, 2-bromo-4-iodopyridine was synthesized conveniently from 2-bromopyridine using LDA and I2 via ‘halogen dance’. 2-Bromo-4-iodopyridine was then converted to other 2,4-diaryl pyridines and 4-aryl-2,2′-bipyridines in one-pot reactions.
Key words
halogen dance - 2-bromo-4-iodo- pyridine - 2,4-disubstituted pyridine - bipyridine
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