Disulfide derivatives of thiosemicarbazones of 4-formyl-5-thiopyrazole

A. I. Uraev; M. S. Korobov; L. D. Popov; G. G. Aleksandrov; E. V. Korshunova; D. A. Garnovskii; A. S. Burlov

doi:10.1134/S1070363217020165

Disulfide derivatives of thiosemicarbazones of 4-formyl-5-thiopyrazole

Authors: Uraev A.I.¹, Korobov M.S.¹, Popov L.D.², Aleksandrov G.G.³, Korshunova E.V.¹, Garnovskii D.A.⁴, Burlov A.S.¹
Affiliations:
1. Research Institute of Physical and Organic Chemistry
2. Chemical Department
3. N. S. Kurnakov Institute of General and Inorganic Chemistry
4. Southern Scientific Center
Issue: Vol 87, No 2 (2017)
Pages: 252-258
Section: Article
URL: https://journals.rcsi.science/1070-3632/article/view/218263
DOI: https://doi.org/10.1134/S1070363217020165
ID: 218263

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Abstract

The reaction of 4-formyl-5-mercaptopyrazole with thiosemicarbazides in methanol has afforded novel disulfide derivatives of thiosemicarbazones, and their structure has been studied by NMR and IR spectroscopy. X-ray diffraction analysis of [5,5'-dithiobis(4-formyl-3-methyl-1-phenylpyrazole)]-4-allylthio-semicarbazone has shown that it exists as a dimer with two molecules linked via the disulfide S–S bridge between the heterocycles in the crystal.