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Imidazo[4,5-d]pyridazines. IV. Synthesis of 4,7 disubstituted derivatives and 1-benzyl-2-substituted thio derivatives

✍ Scribed by G. Anne Gerhardt; Duane L. Aldous; Raymond N. Castle

Book ID: 112121328
Publisher: Journal of Heterocyclic Chemistry
Year: 1965
Tongue: English
Weight: 460 KB
Volume: 2
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570020306

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## Abstract A series of 1‐substituted 4,5‐diformyl‐[1,2,3]triazole derivatives were prepared by 1,3‐dipolar cyclo‐addition of aryl azides with acetylene dicarboxaldehyde mono‐diethylacetal. The triazoles were readily converted into 1‐substituted [1,2,3]triazolo[4,5‐__d__]pyridazines in good yields.