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Unusual dimroth rearrangement of an allyl-1,2,4-triazolo[4,3-c]pyrimidine

✍ Scribed by G. G. Danagulyan; L. G. Saakyan; G. A. Panosyan; G. A. Bulakhov; P. B. Terent'ev; M. G. Zalinyan

Publisher
Springer US
Year
1993
Tongue
English
Weight
147 KB
Volume
29
Category
Article
ISSN
0009-3122

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1,2,3-Triazolo[4,5-e]-1,2,4-triazolo[3,4
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✍ 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

Pyrazolo[3,4-d][1,2,3]triazolo[1,5-a]pyr
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✍ Antonino Lauria; Ilenia Abbate; Chiara Patella; Noemi Gambino; Arturo Silvestri; πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 French βš– 300 KB

Derivatives of the new ring system pyrazolo [3,4-d][1,2,3]triazolo[1,5-a]pyrimidine were synthesized from the corresponding angular isomers, through a Dimroth rearrangement, in quantitative yields. Preliminary computational studies demonstrated that this class of compounds could be a good candidate