5,6-Dihydro-[1,2,5]oxadiazolo[3,4-d]pyridazine-4,7-dione

5,6-Dihydro-[1,2,5]oxadiazolo[3,4-d]pyridazine-4,7-dione Full article

Journal

Molbank
ISSN: 1422-8599

Output data

Year: 2023, Volume: 2023, Number: 2, Article number : M1649, Pages count : DOI: 10.3390/m1649

Authors

Chmovzh Timofey N. ^1,2 , Gaisin Karim S. ^3,1 , Rakitin Oleg A. ¹

Affiliations

1	N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, Moscow 119991, Russia
2	Nanotechnology Education and Research Center, South Ural State University, 76 Lenina Avenue, Chelyabinsk 454080, Russia
3	Department of Chemistry, Moscow State University, Moscow 119899, Russia

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.

Chmovzh T.N. , Gaisin K.S. , Rakitin O.A.
5,6-Dihydro-[1,2,5]oxadiazolo[3,4-d]pyridazine-4,7-dione
Molbank. 2023. V.2023. N2. M1649 . DOI: 10.3390/m1649 WOS Scopus OpenAlex

Web of science:	WOS:001015275400001
Scopus:	2-s2.0-85163777854
OpenAlex:	W4377103987

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