Abstract |
Reactions were performed from aryl azides on the one hand, and activated alkenes coming from β-dicarbonyl compounds or malonodinitrile on the other hand, either with recourse to conventional heating or to microwave activation, to afford 1-aryl-1H-1,2,3-triazoles. The mechanism and the regioselectivity of the reactions involving β-dicarbonyl compounds have been theoretically studied using DFT methods at the B3LYP/6-31G* level: they are domino processes comprising a tautomeric equilibrium of the β-dicarbonyl compounds with their enol forms, a 1,3-dipolar cycloaddition of the enol forms with the aryl azides (high activation energy), and a dehydration process (lower activation energy). The effect of non-conventional activation methods on the degradation of 1,2,3-triazolines was next studied experimentally. Finally, some of the 1,2,3-triazoles such synthesized were evaluated for their bactericidal and cytotoxic activities.
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Authors | Sarah Zeghada, Ghenia Bentabed-Ababsa, Aïcha Derdour, Safer Abdelmounim, Luis R Domingo, José A Sáez, Thierry Roisnel, Ekhlass Nassar, Florence Mongin |
Journal | Organic & biomolecular chemistry
(Org Biomol Chem)
Vol. 9
Issue 11
Pg. 4295-305
(Jun 07 2011)
ISSN: 1477-0539 [Electronic] England |
PMID | 21494704
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Alkenes
- Anti-Bacterial Agents
- Antifungal Agents
- Antineoplastic Agents
- Azides
- Triazoles
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Topics |
- Alkenes
(chemistry)
- Anti-Bacterial Agents
(chemical synthesis, chemistry, pharmacology)
- Antifungal Agents
(chemical synthesis, chemistry, pharmacology)
- Antineoplastic Agents
(chemical synthesis, chemistry, pharmacology)
- Azides
(chemistry)
- Cell Line, Tumor
- Cyclization
- Drug Screening Assays, Antitumor
- Humans
- Microbial Sensitivity Tests
- Microwaves
- Molecular Structure
- Quantum Theory
- Stereoisomerism
- Structure-Activity Relationship
- Temperature
- Triazoles
(chemical synthesis, chemistry, pharmacology)
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