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
✦ LIBER ✦
Fused Mesoionic Heterocycles: Synthesis of 1,2,4-triazolo(4,3-b)-1,2,4-triazole derivatives
✍ Scribed by Pedro Molina; Angeles Lorenzo; Rosa Ma Claramunt; José Elguero
- Book ID
- 104242492
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 118 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Syntheses of 5__H__‐[1,2,4]triazolo[5′,1′:2,3][1,3]thiazino[5,4‐__c__]quinolines 8, 5__H__‐[1,2,4]triazolo[3′,4′:2)3][1,3]thiazino[5,4‐__c__]quinolines 9, 5__H__‐[1,2,4]triazolo[5′,1′:2,3][1,3]thiazino[5,6‐__c__]quinolines 14 and 5__H__‐[1,2,4]triazolo[3′,4′:2,3][1,3]thiazino[5,6‐__c__]
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