Synthesis of 2-substituted 6,8-dinitro[1,2,4]triazolo[1,5-a]pyridines and the formation of the related zwitterionic σ-adducts
✍ Scribed by G. L. Rusinov; V. L. Mikhailov; O. N. Chupakhin
- Book ID
- 105595779
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 190 KB
- Volume
- 48
- Category
- Article
- ISSN
- 1573-9171
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## Abstract magnified image Twenty‐three 2‐(substituted)phenyl‐1,2,4‐triazolo[1,5‐__a__]pyridines have been synthesized by cycloadditison reaction between __N__‐amino methylpyridinium mesitylenesulfonates and substituted benzonitriles under the presence of potassium hydroxide at room temperature.
Synthese von 2H-1,2,3-Triazolo[4,5-~][1,2,4]triazolo[4,3-a]pyridinen und verwandten Systemen Zur Herstellung des 2H-1,2,3-Triazolo[4,5-c]pyridin-4(5H)-ons 4 wurde 2-Phenyl-2H-l,2,3triazol-4-carbaldehyd (1) zunichst in die Acrylsiiure 2 umgewandelt und letztere dann nach vorausgehender Curtius-Umlage
The 1-substituted ethylidenemalononitriles la-c condensed with triethyl orthoformate in refluxing acetic anhydride to yield the dienes 2a-c. On the other hand, a mixture o f N, N-dimethylformamide and triethyl orthoformate condensed with la-d to yield the N, N-dimethylaminopentadienonitriles 2d-g. T