Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5225389 | Tetrahedron | 2007 | 7 Pages |
Abstract
Reaction of azolylacroleins with phosphoranes bearing a conjugated double bond was found to yield either azolyltrienes in a Wittig reaction, or to undergo cyclization to a dihydrobenzene containing the azole substituent. Transformation with an aza-Wittig reagent gave tetrazolylpyridines. The ambident reactivity was found to be dependent on the substituent of the phosphorane, which was rationalized by ab initio (DFT) calculation of the atomic charges of the reaction centres.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Ildikó Nagy, György Hajós, Zsuzsanna Riedl, Orsolya Egyed, Imre Pápai,