Mechanistic Insight into the Halogen Dance Rearrangement of Iodooxazoles
Autor: | Mathieu F. Chellat, James P. Stambuli, Nicolas Proust |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Synthesis. 2011:3083-3088 |
ISSN: | 1437-210X 0039-7881 |
DOI: | 10.1055/s-0030-1260164 |
Popis: | The lithium diisopropylamide mediated halogen dance reaction of 5-iodooxazoles to generate 4-iodooxazoles was studied. The mechanism of the reaction was investigated and compared to the reported mechanism for the halogen dance rearrangement of 5-bromooxazoles. Reaction conditions were optimized and yields of iodooxazole were improved to a synthetically useful level. The use of 2-(butylsulfanyl)-5-bromooxazole as an organic catalyst turned out to be the cornerstone for the success of this reaction. |
Databáze: | OpenAIRE |
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