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Furopyridines. XII. Reaction of 3-bromo, 2-phenylthio and 2-phenylthio-3-bromo derivatives of furo[2,3-b]-, furo[3,2-b]-, furo[2,3-c]- and furo[3,2-c]pyridine with several alkyllithiums

✍ Scribed by Shunsaku Shiotani; Hiroyuki Morita

Book ID: 112130295
Publisher: Journal of Heterocyclic Chemistry
Year: 1992
Tongue: English
Weight: 752 KB
Volume: 29
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570290221

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## Abstract Bromination of 3‐bromofuro[2,3‐__b__]‐ 1a, ‐[3,2‐__b__]‐ 1b and ‐ [3,2‐__c__]pyridine 1d afforded the 2,3‐dibromo derivatives 2a, 2b and 2d, while the ‐[2,3‐__c__]‐ compound 1c did not give the dibromo derivative. Nitration of 1a‐d gave the 2‐nitro‐3‐bromo compounds 3a‐d. The __N__‐oxid