[1,2,5]Thiadiazolo[3,4-b]pyrazine-5,6(4H,7H)-dione

[1,2,5]Thiadiazolo[3,4-b]pyrazine-5,6(4H,7H)-dione Full article

Journal

Molbank
ISSN: 1422-8599

Output data

Year: 2025, Volume: 2025, Number: 3, Article number : M2030, Pages count : DOI: 10.3390/m2030

Authors

Konstantinova Lidia S. ¹ , Obruchnikova Natalia V. ¹ , Rakitin Oleg A. ¹

Affiliations

1	N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, 47 Leninsky Prospekt, Moscow 119991, Russia

Fused 1,2,5-chalcogenadiazoles are often used as biologically active compounds and organic optovoltaic materials. [1,2,5]Thiadiazolo[3,4-b]pyrazines are much less studied due to difficulties in their preparation. In this communication, [1,2,5]thiadiazolo[3,4-b]pyrazine-5,6(4H,7H)-dione, a key precursor for the synthesis of 5,6-dihalo-[1,2,5]thiadiazolo[3,4-b]pyrazines, was prepared via condensation of 1,2,5-thiadiazole-3,4-diamine with oxalic acid or oxalyl chloride. The structure of the newly synthesized compound was established by elemental analysis, high-resolution mass spectrometry, 1H and 13C NMR, IR spectroscopy, and mass spectrometry.

Konstantinova L.S. , Obruchnikova N.V. , Rakitin O.A.
[1,2,5]Thiadiazolo[3,4-b]pyrazine-5,6(4H,7H)-dione
Molbank. 2025. V.2025. N3. M2030 . DOI: 10.3390/m2030 WOS Scopus OpenAlex

Web of science:	WOS:001581582600001
Scopus:	2-s2.0-105017857948
OpenAlex:	W4411930282

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