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Diaminothiadiazoles – Building Blocks for Macroheterocycles

Elena A. Danilova, Tat’yana V. Melenchuk, Olga N. Trukhina, and Mikhail K. Islyaikin@

Ivanovo State University of Chemistry and Technology, 7, Engels Av., 153000, Ivanovo, Russia

@Corresponding author E-mail: islyaikin@isuct.ru

 

DOI: 10.6060/mhc2010.1.68

Macroheterocycles 2010 3(1) 68-81

 

Syntheses and properties of 2,5-diamino-1,3,4-thiadiazole, 3,5-diamino-1,2,4-thiadiazole and 3-N-alkyl-5-amino-2-imino-1,3,4-thiadiazolines – building blocks for macroheterocyclic compounds are discussed in this review. The convenient methods of their synthesis were elaborated and peculiarities of their geometrical structure were discussed. The mechanism of 3,5-diamino-1,2,4-thiadiazole formation from 2-imino-4-thiobiuret was simulated by quantum chemistry methods at the level of Density Functional Theory (DFT).

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