Nair, Vijay ; Mathew, Smitha C. ; Biju, Akkattu T. ; Suresh, Eringathodi (2007) A novel reaction of the "Huisgen Zwitterion" with chalcones and dienones: an efficient strategy for the synthesis of pyrazoline and pyrazolopyridazine derivatives Angewandte Chemie, 119 (12). pp. 2116-2119. ISSN 0044-8249
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/ange.20...
Related URL: http://dx.doi.org/10.1002/ange.200604025
Abstract
Two unexpected transformations: The reaction of the Huisgen zwitterion derived from triphenylphosphane and diisopropyl azodicarboxylate (DIAD) with chalcones affords functionalized pyrazolines. In contrast, the reaction with dienones affords pyrazolopyridazines, presumably by Diels-Alder reaction of the initially formed pyrazoline with excess DIAD.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Chalkone; Pyrazoline; Stickstoffheterocyclen; Synthesemethoden; Zwitterionen |
| ID Code: | 84084 |
| Deposited On: | 24 Feb 2012 06:19 |
| Last Modified: | 24 Feb 2012 06:19 |
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