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- Title
5,6-Dihydro-[1,2,5]oxadiazolo[3,4- d ]pyridazine-4,7-dione.
- Authors
Chmovzh, Timofey N.; Gaisin, Karim S.; Rakitin, Oleg A.
- Abstract
1,2,5-Chalcogenadiazoles fused with electron-withdrawing heterocycles have been actively investigated for the preparation of organic photovoltaic materials. [1,2,5]Oxadiazolo[3,4-d]pyridazines are much less studied than other chalcogenadiazolopyridazines due to their low availability. In this communication, we report our study showing that 5,6-dihydro-[1,2,5]oxadiazolo[3,4-d]pyridazine-4,7-dione, a key precursor for the synthesis of 4,7-dihalo-[1,2,5]oxadiazolo[3,4-d]pyridazines, is formed via the cyclization of 1,2,5-oxadiazole-3,4-dicarbohydrazide in hydrochloric acid. The structure of the newly synthesized compound was established by means of elemental analysis; high-resolution mass spectrometry; 1H and 13C NMR; IR spectroscopy, and mass spectrometry.
- Subjects
PYRIDAZINES; MASS spectrometry; CHEMICAL synthesis; ELEMENTAL analysis; HYDROCHLORIC acid
- Publication
Molbank, 2023, Vol 2023, Issue 2, pM1649
- ISSN
1422-8599
- Publication type
Article
- DOI
10.3390/M1649