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Activated Nitriles in Heterocyclic Synthesis: Synthesis ofPyrano[2,3-d ]pyrimidine andPyrano[3,2-e ][1,2,4]triazolo[1,5-c ]pyrimidineDerivatives

✍ Scribed by El-Agrody, Ahmed M.; Emam, Hussein A.; El-Hakim, Mamdouh H.; AbdEl-latif, Mohsen S.; Fakery, Ashraf H.


Book ID
119992549
Publisher
Science Reviews 2000 Ltd
Year
1997
Tongue
English
Weight
284 KB
Volume
9
Category
Article
ISSN
0308-2342

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1,2,3-Triazolo[4,5-e]-1,2,4-triazolo[3,4
✍ Giuliana Biagi; Irene Giorgi; Oreste Livi; Clementina Manera; Valerio Scartoni πŸ“‚ Article πŸ“… 1999 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 301 KB πŸ‘ 1 views

## Abstract Some new 1,2,3‐triazolo[4,5‐__e__]‐1,2,4‐triazolo[3,4‐__c__]pyrimidmes were prepared starting from the corresponding 1,2,3‐triazolo[4,5‐__d__]pyrimidines __via__ the formation of the 1,2,4‐triazole ring. Thus suitable hydrazino derivatives 6 were condensed with triethyl orthoformate, tr