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- Title
Reactions of pyrazole-3(5)-diazonium salts with 4-hydroxy-2 Н-chromen-2-one and isochroman-1,3-dione.
- Authors
Ledenyova, Irina; Gracheva, Alena; Shikhaliev, Khidmet
- Abstract
[Figure not available: see fulltext.] Derivatives of a previously unknown heterocyclic system 6 Н-chromeno[4,3- e]pyrazolo[5,1- c][1,2,4]triazin-6-one were obtained via reaction of pyrazole-3(5)-diazonium salts with 4-hydroxy-2 Н-chromen-2-one. Analogous reactions with isochroman-1,3-dione are followed by recyclization leading to the formation of 2-(4-hydroxypyrazolo[5,1- c][1,2,4]triazin-3-yl)benzoic acids.
- Subjects
PYRAZOLES; DIAZONIUM compounds; AZO compound synthesis; TRIAZINES; HETEROCYCLIC compounds synthesis; RING formation (Chemistry)
- Publication
Chemistry of Heterocyclic Compounds, 2015, Vol 51, Issue 8, p734
- ISSN
0009-3122
- Publication type
Article
- DOI
10.1007/s10593-015-1766-6