Fused mesoionic heterocycles : synthesis of 1,3,4-triazolo(3,2-a)pyridine derivatives
✍ Scribed by P. Molina; M. Alajarín; A. Arques; R. Benzal; H. Hernandez
- Book ID
- 104220000
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 162 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
A number of mesoionic compounds derivatives of the bicyclic system 1,3,4-triazolo(3,2_a)pyridine have been prepared, and an improved method for the preparation of 1,3,4oxadiazolo(3,2-a)pyridylium-2-aminides from 1,3,4-oxadiazolo(3,2-a)pyridylium-2-olate and iminophosphoranes is described.
Recently we have reported two general methods for the preparation of mesoionic derivatives of 1,3,4-oxadiazolo
📜 SIMILAR VOLUMES
## Abstract A new route for the synthesis of 3H‐1,2,4‐triazolo[1,5‐a]pyridines 7a–j, 12a,b, and 17a,b utilizing the reaction of the hydrazones of cyanoethanoic acid hydrazide 3a,b with ylidene malononitriles 2a–e, malononitrile, and 3‐aminocrotononitrile is described.