An Efficient Synthesis of New 5-(1-Aryl-1 H -pyrazole-4-yl)-1 H -tetrazoles from 1-Aryl-1 H -pyrazole-4-carbonitriles via [3 + 2] Cycloaddition Reaction
✍ Scribed by dos Santos, Maurício S.; Bernardino, Alice M. R.; Pinheiro, Luiz C. S.; Canto-Cavalheiro, Marilene M.; Leon, Leonor L.
- Book ID
- 118262078
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2012
- Tongue
- English
- Weight
- 186 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0022-152X
- DOI
- 10.1002/jhet.928
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## Abstract magnified image 2,3,3‐Trimethylindolenine and 5‐chloro‐2,3,3‐trimethylindolenine were converted into β‐diformyl compounds by the action of the Vilsmeier reagent at 50°C. The dialdehydes reacted with various arylhydrazines and 2‐pyridylhydrazine to produce mono‐hydrazones as mixtures of