Work

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

Year: 2025

Type: article

Abstract: 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.

Source: Molbank

DOI: 10.3390/m2030

Authors: Lidia S. Konstantinova, Natalia V. Obruchnikova, Oleg A. Rakitin

Institutions: Russian Academy of Sciences, N.D. Zelinsky Institute of Organic Chemistry

Language: English

Topic: Structural and Chemical Analysis of Organic and Inorganic Compounds

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $603

Funder: Russian Science Foundation